n.變極

adj.變極

Simplex winding double speed asynchronous motor is easiest and widest polechanging control method among the change pole motors. 摘要單繞組雙速異步電動(dòng)機(jī)是變極電機(jī)中方法最簡(jiǎn)易、應(yīng)用最廣泛的一種變極調(diào)速方法。

On the basis of a comparative analysis of various pole-changing and speed-adjusting schemes for marine AC three-speed winch motors, the paper presents a new design adopting a patent method which changes pole by changing the unit ampere conductor. 本文在分析比較船用交流三速起貨機(jī)電動(dòng)機(jī)變極調(diào)速方案的基礎(chǔ)上，提出采用專(zhuān)利“安導(dǎo)元變極法”改進(jìn)設(shè)計(jì)，從而在原機(jī)座基礎(chǔ)上使電動(dòng)機(jī)輸出功率提高、運(yùn)行性能改善。

He had to make a quick change at Shanghai. 他不得不在上海匆忙換車(chē)。

Take a change of clothes with you. 把你替換的衣服帶去吧。

He was hostile to any change in our plan. 他反對(duì)我們計(jì)劃中的任何改變。

Can you change a five-pound note? 你能換開(kāi)五英鎊的票子嗎？