查询词典 break to sb.

Pull sb's chestnuts out of the fire (亦作pull the chestnuts out of the fire for sb)— to help sb out of a difficulty at one's own risk; to assure another's burden or hardship代某人火中取栗,替某人冒险;为某人挑重担 I had pulled the chestnuts out of the fire for him on several occasions and was unwilling

to do it again。我已经替他冒险过好几回，我不愿意再干了。

Help sb.do sth. help sb.to do sth. help sb. with sth.

它们都有"帮助某人做某事"的意思。

Tell sb. of sth.,inform sb. of sth ,warn sb. of fire

告诉某人什么事，通知某人什么事，警告某人着火了

Tell sb. of sth. inform sb. of sth warn sb. of fire

4： of表示人物的特性，籍贯，特性或出生等

B keep sb from doing sth = stop sb from doing sth ; prevent sb from doing sth

阻止某人做某事。固定短语。

doing;keep sb. from doing;stop sb.doing,其中keep sb.

doing意为"使……持续做某事"，意思就不同了。

Be on one's guard against sb.; keep a wary eye on sb.; be vigilant against sb.

我对减价商品有点戒心。

Keep sb/sth out; exclude sb/sth;block sb/sth

将某人〖某物〗关在外面；排除；遮住

C ~ sb (from sb/sth) keep sb safe from harm or danger 保护某人: The calm courage of the pilot preserved the lives of the passengers.

飞行员临危不惧的勇气保住了乘客们的生命。

Leave/let sb/sth alone not take, touch or interfere with sb/sth;not try to influence or change sb/sth

不带走，不触摸，不干涉某人；不想左右或改变某人某事物

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。