查询词典 snail shaped

Things are changing, but at a snail's pace.

事物在变化，但速度很慢。。。

From 1957 on they grew at a snail 's pace.

从一九五七年起，我们生产力的发展非常缓慢。

He does anything at at a snail's pace.

他做什么事情都慢吞吞地。

They did the project at a snail's pace and only half of it finished when the dead line came.

他们的工程做得很慢，截止日期到了，但是只完成了一半。

She always speaks at a snail's pace .

她说话总是慢条斯理地。

Moving at a snail's pace, slowly I neared the end of the plank.

正以蜗牛的速度，慢慢地我走近的木板结束。

It crept up on us - not at a snail's pace, but rather as quickly as the seasons changed.

它攀升我们-而不是在一个缓慢的，而是尽快的四季变化。

Why you are always at a snail's pace?

总是慢吞吞的。

Government organization deal with housing problem at a snail's pace.

政府机构对住房问题处理得十分缓慢。

Is your system moving at a snail's pace?

系统运行时慢地象蜗牛？

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。