查询词典 chalk

Which cannot adhibit dust easily. And pollution is easy to clearly to chalk.

对粉笔、蜡笔等所沾上的污渍也特容易清洗。

Which can't adhibit dust easily. And pollution is easy to clearly to chalk.

对粉笔、蜡笔等所沾上的污渍也特容易清洗。

A piece of chalk or chalklike substance in crayon form, used for marking on a blackboard or other surface.

粉笔：一支粉笔或带颜色的粉笔状物，用以在黑板上或其他物体表面作标记

"A piece of chalk or chalklike substance in crayon form, used for marking on a blackboard or other surface."

一支粉笔或带颜色的粉笔状物，用以在黑板上或其他物体表面作标记。

Chrissie, chalk.

克丽丝 粉笔

And so she moves around the stage with clocklike inevitability, makes no unexpected leaps or dares, touches down precisely on the chalk, does not dream of unplanned cabrioles.

她在台上舞去舞来，像钟表一样必然，按部就班跳起，准时准点落下，计划外的击腿跳想也不要想。

Then he knelt by the fire and painfully wrote something upon each of these with his "red keel"; one he rolled up and put in his jacket pocket, and the other he put in Joe's hat and removed it to a little distance from the owner. And he also put into the hat certain schoolboy treasures of almost inestimable value -- among them a lump of chalk, an India-rubber ball, three fishhooks, and one of that kind of marbles known as a sure 'nough crystal.

然后他就在火堆旁跪下，用他那块红砚石在树皮上吃力地写了几个字；他把一块卷起来，放到上衣口袋里，另一块放在乔的帽子里，他把帽子挪远了一点后又在里面放了些被小学生视为无价之宝的东西――一截粉笔；一个橡皮球；三个钓鱼钩和一块叫做&纯水晶球&的石头。

And he also put into the hat certain schoolboy treasures of almost inestimable value -- among them a lump of chalk, an India-rubber ball, three fishhooks, and one of that kind of marbles known as a "sure 'nough crystal."

然后他就在火堆旁跪下，用他那块红砚石在树皮上吃力地写了几个字；他把一块卷起来，放到上衣口袋里，另一块放在乔的帽子里，他把帽子挪远了一点后又在里面放了些被小学生视为无价之宝的东西——一截粉笔；一个橡皮球；三个钓鱼钩和一块叫做&纯水晶球&的石头。

A chalk, a book, one ask for a favor, the whole process of perforative classroom education, this is the true portraiture of traditional Chinese education.

一根粉笔，一本书，一张嘴，贯穿课堂教学的整个过程，这就是传统语文教学的真实写照。

Coussy's poroplastic theory is used for the extension of this model to describe poromechanical coupling of chalk. According to the general framework of poro-elasto-plastic modelling, the concepts of the effective stress tensors, especially the concept of plastic effective stress tensor, are discussed.

基于这一认识，将Coussy孔隙塑性理论扩展用于研究饱和白垩岩的孔隙塑性力学特性，根据孔隙弹塑性力学的一般框架，讨论在弹塑性域上有效应力尤其是塑性有效应力概念的有效性。

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。