電路的AS

A. as的用法

祈使句的用法，可以翻譯成「就如」或者「因為」

B. 電氣圖紙中的VS、AS和3-DF 2A各表示什麼意思啊

VS應該是個電壓表顯示的轉換開關，圓圈V為電壓表，量程為0-600V的。AS應該是電迴流顯示的轉換開答關，圓圈A是電流表，量程為0-40A的。3-DF在這應該是供給電壓表電源三相保險盒，熔斷絲限流為2A的。3-CT 是電流互感器，取樣比是40:5的，容量是30VA的。

C. 電氣圖紙符號AS 表示什麼

咨詢記錄 · 回答於2021-04-06

D. 有關於as的各種用法

as可用作連詞，引導比較、時間、原因及方式等四種狀語從句，應注意的是，引導的比較狀語從句往往有省略；引導的時間狀語從句一般用一般現在時而不用一般將來時；引導原因狀語從句時與「Because」和「since」引導的從句比較起起來語氣最弱。
as作介詞，意思時「作為」，「以……身份」。例如：He came to China as a tourist five years ago.

而表示像…一樣時，like通常作介詞用，而介詞後面通常接名詞，代名詞和動名詞。

E. 電線電纜中AS什麼意思

AS是絞合退火裸銅
TS是絞合鍍錫銅
AD是實心裸銅
TD是實心鍍錫銅
DS是絞合沒退火裸銅

F. 電氣圖紙符號AS 表示什麼

要看設計圖例啊，如果圖例上沒有標明的話，一般AS代表通風方式控制

G. as的用法及意義

as這個詞看似簡單，但用法卻是很多的，對它的正確理解關繫到英語應用能力的提高，因此我們有必要對其用法和搭配進行詳細闡述。一、as作介詞1. 區別as和likeas作為介詞時，可以表示「像……」，這時它可以和like互用；as還可以表示「以……身份」或「作為……」，「當作……」，但like不能。e.g. I) They lived and fought among the people as 「fish in water」. (as相當於like)II) As a scientist, he was dedicated to (致力於) the truth. (這里不可以用like)II) They talked as old friends. (他們確乎是老朋友。)à They talked like old friends. (他們像老朋友一樣。)2. as引導的介詞短語在句中可以充當：a) 賓語補足語e.g. I) She spoke of me as her dearest friend.II) The plan struck me as very much worthwhile.III) You mustn』t think of me as (being) unhappy.b) 主語補足語 e.g. I) She is well-known as being very cheerful.II) He is sometimes portrayed as belonging to another century.III) That picture is looked upon as very valuable.常用於這類結構的動詞有：accept, consider, describe, elect, interpret (理解), look upon, perceive, recognize, refer to, regard, see, strike, take, think of, treat, view等等。二、as作連詞1. 作「當……的時候」,引導時間狀語從句。注意與when、 while的用法區別。A. when作"當……的時候"解,可以指較短的(一點)時間,也可指一段時間。e.g. I)When he was at college, he could speak several foreign languages.II) When the clock struck twelve, all the lights in the street went out. B. while常表示一段較長的時間或一個過程,強調主句謂語動詞與從句謂語動詞同時發生。e.g. Work while you work. Play while you play.C. 但屬下列情形時,只用as, 而不用when或while。1) 用於表示同一個人的兩種動作交替進行,指「一邊……,一邊……」。e.g.I)The girl dances as she sings on the stage. II) He looked behind from time to time as he went forward.2)表示兩個同步發展的動作或行為,譯為「隨著……」。e.g. I) As time went on / by, she became more and more worried. II) As children get older, they become more and more interested in the thingsaround them. 3)表示兩個短促行為或事件幾乎同時發生。e.g. I) I thought of it just as you opened your mouth. II) Just as the flying worm hit her face, she gave a loud cry.4) 後接名詞表示某一年齡段時,用as。e.g. As a young man, he was active in sports. 2. as=since, 作「既然」、「由於」解,引導原因狀語從句,常用來表示已為人們所知或顯而易見的原因或理由。e.g. I)As / Since you』re not feeling well, you may stay at home.II) As he wasn't ready in time, we went without him.3. as=in the way that, 作「像」、「按照……的方式」解，引導方式狀語從句。e.g. I)He speaks English as Americans do.II) Remember, you must do everything as I do.4. 用於as...as...或not so/ as...as...中,前一個as是副詞,後一個as是連詞，引導比較狀語從句。e.g. I) They helped the old man as often as possible. II) I don』t speak English so / as well as he does. 5. 作「雖然」、「盡管」解,引導讓步狀語從句。常用倒裝語序,即adj. /adv. / n.+ as +主語+謂語+主句。e.g. I) Tired as they were, they walked on.II) Child as he is, he knows a lot. (child前不用冠詞)6．as引導類比從句，與so 連用，表示「正如……所以……」。e.g. Just as French people enjoy their wine, so the British enjoy their beer.如同法國人喜歡他們自產的葡萄酒一樣，英國人喜歡他們自產的啤酒。三、as作副詞1．表示同等程度、質量、數量等，作「一樣地……」解釋。e.g. I) Steve runs fast, but I run just as fast.史蒂夫跑的很快，但是我跑的和他一樣快。II) Tom has a lot of money, but I don』t have as much.湯姆有很多的錢，而我的錢沒有他多。2．用在形容詞或者-ed形式的過去分詞前，相當於形容詞或過去分詞作定語，但as仍然保留其原來的詞彙意義。e.g. I) In the dead of night I was suddenly wakened by a cry as made by a wolf.在寂靜的黑夜裡，我突然聽到了一聲如同狼嚎一樣的叫聲。II) The old man began to describe the accident as seen through the eyes of a witness.這位老人開始描述這一起事故，如同是一個證人親眼目睹了一般。四、作as作關系代詞，引導定語從句，不僅可以代替一個名詞，而且可以代替整個句子或一件事，通常譯作 「正如這一點」，「如……一樣」。e.g. I) As is known to everybody, the moon travels around the earth once every month.如同大家所知道的一樣，月亮每月圍繞地球旋轉一次。II) As has been said before, grammar is not a set of dead rules.如同以前說過的一樣，語法並不是一套死規則。III) Such a clever girl as she can learn anything quickly.像她這樣聰明的女孩子學任何東西都很快。IV) It was absolutely bad manners to get into people』s room without knocking, as quite a few young people are doing every day.不敲門就進入別人的房間絕對是不文明的行為，現在很多年輕人每天都這么干。五、as構成的固定片語1．as可以構成介詞片語：as against（與……相比）；as compared with（與……對比）；as for / to（至於，關於）；as from / of（自……起）；as a result of（由於……的結果）；as regards（至於）；e.g. I) The output amounts to ten thousand dollars as against eight thousand last year.和去年八千美元的產量相比，今年的產量達到了一萬美元。II) There is no doubt as to who will be elected.至於誰會當選，這是毫無疑問的事。III) As a result of your carelessness, the whole project should be put off at least one month.由於你的粗心，整個計劃將要被推遲至少一個月。2．as可以構成副詞片語：as above（如上）；as a matter of fact（事實上）；as a whole（就整體來說）；as follows（如下）；as good as（和……幾乎一樣，實際等於）；as such（照其資格，其本身）；such / so … as to（這樣的……以至於……）；as yet（尚，至今還）（用於否定句）；as well（也）；e.g. I) As a matter of fact, he didn』t have any interest in the project.事實上，他對這個項目一點興趣都沒有。II) I am not so foolish as to make such a promise.我還沒有愚蠢到會許下這樣的承諾的地步。III) We are as good as ruined.我們幾乎要崩潰了。3．as構成片語作關系代詞：as … go（就……一般情況來說）；as it is / was（事實上，按現狀）；as it were（好像是）；e.g. I) He is quite good, as boys go. 就一般男孩子而言，他已經很好了。II) I thought conditions would get better, but as it was, they were getting worse.我以為情況會好轉，但事實上，卻是越來越糟糕。4．as可以構成連詞片語：according as（根據，按照……而）；in as (so) far as（根據……程度）；e.g. I) You may go or stay, according as you decide.你可以自己決定是去還是留。II）In as (so) far as we have known about the matter, we can make a decision after the meeting. 就我們對這件事情的了解程度，我們可以在會後作出一個決定。

H. as的含義和用法

as 的含義和用法
1。as 是連詞，表示「隨著」的意義。lives是life的復數，意義是「生活」。
2。as 是連詞，表示「因為，由於」的意義。wanting是現在分詞，表示主動意義，wanting to buy cars=who want to buy cars。

As的用法小結
as可以作連詞、介詞及關系代詞和副詞。現將其用法小結如下:

（一）、 as作連詞的用法:
1.作「在-------期間，當----的時候」引導時間狀語從句.注意與when、 while的用法區別。
①下列情形時,只用as, 而不用when或while。
1)用於表示同一個人的兩種動作交替進行,指一邊----一邊. 如:
The girl sings as she goes to school.
He looked behind occasionally as he went forward in the forest.
2)表示兩個同步發生的動作或行?意思是隨著-----的發展.如:
As time went on / by, she became more and more beautiful .
As children get older, they become more and more interested in everything.
3)表示兩個短暫行為或事情幾乎同時發生.如:I watched her as she read the book.
I thought of it just as you opened your mouth.
Just as the flying worm hit her face, she gave a loud cry.
4)接在名詞後面表示某一個年齡段時.如:
As a young man, he was active in sports.
②when作"當……的時候"解,可以指較短的(一點)時間,也可指一段時間。如:When I was at college, I could speak several foreign languages. When the clock struck twelve, I had slept for 2hours.
③ while常表示一段較長的時間或一個過程,強調主句謂語動詞與從句謂語動詞同時發生。如:Work while you work. Play while you play.
2. As =Since 作"既然"、"由於"解,引導原因狀語從句,常用來表示已為人們所知或顯而易見的原因或理由。如: As he』s been ill for ages, I will help him.
As / Since you're not feeling well, you may stay at home.
As he wasn't ready , we went without him.
3. As =in the way that作"像"、"按照……的方式"解,引導方式狀語從句。如:
Do as I told you.
Remember, you must do everything as I do.
4. 用於as--- as或not / so/ as ---- as中,前一個as是副詞,後一個as是連詞,引導比較狀語從句。如:They helped the old as much as possible.
I don't speak English so/ as well as she does.
5. 表示雖然,盡管 等,引導讓步狀語從句,常用倒裝語序,模式為:
adj. /adv. / n.+as +主語+謂語+主句。如: Young as he is, he knows much.
Tired as they were, they walked on.
6. 表示也------一樣。 She is a doctor, as was her husband.

（二）、 as作關系代詞,引導定語從句,表示正如,這一點.如:
He is very careful, as we all know.
As is well-known, Taiwan belongs to China.
另外,當先行詞被the same, such等詞修飾時,常用as來引導定語從句。如:
Such a clever girl as she can learn anything quickly.
I was reading the same book as he bought yesterday.

（三）、as作介詞的用法.
1.表示好像。如:He dressed as a policeman.
2. 表示作為當作。如：I found a job as a guide.
3. 當某人是某身份時。如：As a child , she was sent to abroad.
4. as引導的介詞短語大多用作狀語,as譯為"作為";少數情況可引起賓語補足語。如:
As a Party member, I'll take the lead in everything. (狀語)
She works as a model. (狀語)
She has me as one of her best friends.(引起賓語補足語)

（四）、作副詞的用法 1 表示與------等同。如：This dress is twice as expensive as that one. 2 像，如等。如：As before, he remained unmoved.
總之，通過以上的分析，我們對as的詞性和用法有了比較全面的理解和把握，才能在實際的運用中做到心中有數，應付裕如。

I. 各個電路板上的字母都代表什麼意思

U一般代表集成電路，也有ic表示的

V代表晶體管，二極體三極體之類

R代表電阻

C代表電容

L代表電感

J代表插座

TP代表檢測點

F表示保險。舉例說明。比如R代表電阻器、Q表示三級管等，表示電路功能編號。

R117：發光二極體

LAMP，C代表電容器；第三，D表示二極體，四位表示該器件在該電路板上同類器件的序號；第二個是數字，如“1”表示主板電路電路板上的各類符號的意思：主板上的電阻，一般情況下，第一個字母標識器件類別：主板上的變壓器，“2”表示電源電路等等：晶體三極體：發射極，這是由電路設計者自行確定的，序號為17,C)。

(9)電路的AS擴展閱讀

電路板的名稱有：陶瓷電路板，氧化鋁陶瓷電路板，氮化鋁陶瓷電路板，線路板，PCB板，鋁基板，高頻板，厚銅板，阻抗板，PCB，超薄線路板，超薄電路板，印刷（銅刻蝕技術）電路板等。電路板使電路迷你化、直觀化，對於固定電路的批量生產和優化用電器布局起重要作用。

電路板可稱為印刷線路板或印刷電路板，英文名稱為（Printed Circuit Board）PCB、（Flexible Printed Circuit board）FPC線路板（FPC線路板又稱柔性線路板柔性電路板是以聚醯亞胺或聚酯薄膜為基材製成的一種具有高度可靠性，絕佳的可撓性印刷電路板。

具有配線密度高、重量輕、厚度薄、彎折性好的特點。）和軟硬結合板（reechas，Soft and hard combination plate）-FPC與PCB的誕生與發展，催生了軟硬結合板這一新產品。因此，軟硬結合板，就是柔性線路板與硬性線路板，經過壓合等工序，按相關工藝要求組合在一起，形成的具有FPC特性與PCB特性的線路板。

J. 交直流空開的AS是什麼意思

1、交流空開和直流空開是否可以通用，就理論上肯定是不行的，不然就不會交直流之分了，主要原因還是因為滅弧問題，
2、 直流空開因為直流電產生的電弧大所以滅弧性能做的比交流空開的要好，如果使用交流空開代替直流空開，很顯示滅弧性能達為到要求會產生燒毀觸頭或是燒毀空開的事故.
3、對於大容量空開；直流專用產品很少，一般都是交流空開代替。選用時要選國內外知名廠家產品，必須具備直流分斷參數和試驗的相關數據。其保護只能選用電磁脫口方式，不能選用電子保護。
4、另外主要有開關的遮斷容量來決定，他為開關能斷開不同性質的額定電壓和電流大小乘積。現在的空開的額定電壓大多在交流690V左右，如用在直流48伏上面，開關兩端的電壓雖然是直流的，但是直流的電壓值遠比交流的額定電壓低，故實際使用並不會有什麼電氣上的大問題；
5、不是我們直流配電上所用的熔絲也常用的是交流的嗎！不知你看沒看過繼電器觸頭的容量嗎？有這樣的標示：交流220伏1A、直流48伏0.5A，同一副觸頭電流的性質不同，遮斷容量也就不同，繼電器觸頭預先並不知道是通直流還是交流的，一旦用在了48伏直流迴路，那它的分斷容量就是直流48伏0.5A，直流電壓再地的話，相應的電流值可大一些。回到空開上也就是如此。