•buck
buck发音
英:[bʌk] 美:[bʌk]
英: 美:
buck中文意思翻译
n.钱, 雄鹿, 雄兔, (鹿皮等)制物,<美口>年轻男子
n.<俚>一美元
v.马弓背踢后腿挑起, 抵制, 振作
buck词形变化
动词第三人称单数: bucks |名词: bucker |动词现在分词: bucking |动词过去式: bucked |动词过去分词: bucked |
buck同义词
kick | fly in the face of | leap | lowly | responsibility | money | blame | male animal | sawhorse | rear | go against | spring | dollar | cash | horse | shoot down | low-grade | oppose | clam | Pearl Buck | tear | long horse | jerk | vaulting horse |jump | resist | dollar bill | liability | lowest | shoot | hitch | charge | sawbuck | vault
buck反义词
hind
buck习惯用语
cut the buck-有效地做, 符合标准
-干得漂亮
buck up
-[俗](使)兴奋; 鼓舞振作起来, 打起精神
-[俗]赶快; 急忙
-穿漂亮点
make a buck
-挣钱
cut the mustard
-有效地做, 符合标准
-干得漂亮
buck for
-[俚]为升迁或利益而努力, 千方百计地谋求
in the bucks
-[美俚]手头有钱
Old buck !
-老伙计, 老朋友(熟人间的称呼)
pass the buck
-(牌戏中)把轮到发牌的筹码转给另一个人
-推诿责任; 愚弄人家
buck and wing (= buck dance)
-[美]一种复杂的快速踢舞
buck up against
-[美俚]反抗, 不甘沉默
习惯用语
a fast buck
-[美、澳俚]轻易得来的钱(通常指不择手段得来的)
buck常见例句
1 、A dozen for six space bucks, or two dozen for 10 space bucks.─── 六个太空币换一打鸡蛋 或者十个太空币换两打也行
2 、He admired her willingness to buck the system(= oppose authority or rules).───他赞赏她反抗现存体制的主动性。
3 、Buck Mulligan sat down to unlace his boots.───勃克·穆利根坐下来解他那高腰靴子的带子。
4 、If you break a glass, do not pass the buck, admit that you did it.───如果你打破了玻璃杯,不要推卸责任,承认是自己干的。
5 、You'd better buck up your ideas.───你最好注意改进你的思想。
6 、He made a fast buck in the con scheme.───在那场骗局中他轻而易举赚了一笔不义之财。
7 、Like the buck, but inductor, switch and diode are rearranged.───与降压类似,但是电感、开关和二极管重新安排。
8 、He brought the mill buck and timbers from the countryside.───他从乡下带来了锯木架和木材。
9 、Five bucks to get in, two bucks for a candy apple and a hot chocolate, which is kind of a ripoff in my opinion, but that's neither here nor there.─── 五块买了门票 两块买了一支糖苹果 一杯热巧克力 我觉得简直贵得离谱 但这都不是重点
10 、He will have to buck up , if he wants to catch that train .───如果他想赶上那班火车,那么他就得快点。
11 、YouTube - How to Create a High-Def speaker for under a buck.───如何营造一个高清晰扬声器,为下推卸责任。
12 、Buck Mulligan sat down in a sudden pet.───勃克·穆利根突然气恼起来,一屁股坐下。
13 、However, in their haste to earn a quick buck, the land and.───后地挣这笔不花力气的钱时,这个地方及整个环境都受害非浅。
14 、When side by side two rabbits go, Who can tell the buck from the doe?───双兔傍地走 安能辨我是雌雄
15 、I guess we were just trying to make a quick buck.───大概我们太急于赚钱。
16 、You've spent a lot of time and effort to make a buck pretax.───你已经花了很多时间和精力来赚税前的收入。
17 、If he hopes to keep his job,he'll have to buck up his ideas.───他若想继续干这份工作,就得更新自己的观念。
18 、He could always hustle a buck or two from some sucker .───他总能从傻瓜身上弄到一两块钱。
19 、Don't pass the buck to me.───别把责任推给我。
20 、You're the sort of guy if you could make a 1000 bucks honest or ten bucks doing it crooked you'd do it crooked every time.─── 你这种人就是这样 宁愿捞偏门挣个十块钱 也不会去走正道挣个一千块钱
21 、Buck Mulligan turned suddenly for an instant towards Stephen but did not speak.───勃克·穆利根抽冷子回头瞅了斯蒂芬一眼,然而并没吱声。
22 、When things get difficult he's too ready to pass the buck.───如果事情陷害入困境,他就随时准备推诿责任。
23 、Buck Mulligan frowned at the lather on his razorblade.───勃克·穆利根朝着剃胡刀上的肥皂沫皱了皱眉。
24 、He'll have to buck up,if he wants to catch that train.───如果他想赶上那班火车,那么他就得快点。
25 、Don't try to buck every new tendency.───不要和每个新潮流唱反调。
26 、His horse began to buck,but he managed to stay on.───他的马开始腾跃,但他设法不摔下来。
27 、It's that Congress passed the buck.───国会通过了这次战争。
28 、Buck ;technical collaborators, Karla R.Lovaasen, Michelle A.───书名/作者 Step-by-step medical coding Carol J.
29 、They are all passing the buck.───他们都在推卸责任。
30 、Buck Mulligan asked impatiently.───”勃克·穆利根不耐烦地问道。
什么叫BUCK电路?
buck电路是降压式变换电路。
buck电路又称降压式变换电路,顾名思义,它有着能够降低电路压差的作用。我们知道,当电路的电压过高时非常容易导致电路的毁坏,而buck电路的发明就很好的避免了这个短处。
buck电路的工作原理即小波纹近似原理,buck电路的输出电容由较大的直流分量和细小的波纹分量组成,可以将其近似看作一种恒定直流,因此可以改变电路由于某些原因导致电压升高的情况,这就是buck电路的工作原理。
BUCK电路是正激还是反激?
首先分别简单分析一下三种电源拓扑的工作原理。
BUCK:如下图一所示,当Q1导通时,输入电流经过Q1给电感L1充电,同时给负载R1供电得到Uo由于电感的左端电压为输入电压,则二极管D1截止,当Q1关断,由于电感的电流不能突变,所以产生感应电动势,方向是左负右正,根据楞次定律,感应电流总是阻碍电流减少的方向,则二极管D1导通续流,电感L1放电
反激:当Q1导通,如图变压器忘画同名端,变压器原边上正下负,给电感充电,在副变感应下正上负,整流二极管D1截止,负载右C1供电,当Q1关断,原边电感放电,在副变感应上正下负的电压,二极管D1开通。
正激:当Q1导通,原理图和反激变换器的差别就是变压器的同名端相反,副变感应上正下负的电压,二极管D1导通,给电容C1充电并且给负载供电,当Q2关断时,副变感应上负下正电压,二极管截止,负载由电容C1供电。
对比三种拓扑的工作方式,BUCK和正激变换器相似,由于正激变换器有变压器,所以可以说正激变换器是隔离型的BUCK变换器。