查询词典 crumble to dust

This paper introduces the study of characteristics of electric charge carried by dust particles due to the Millikan testing method.

对颗粒电荷测量方法进行了研究，将密立根方法应用于自然状态下尘土颗粒电荷的测量。

The study of characteristics of electric charge for charged dust particles by the Millikan testing method is introduced.

结果表明：尘土颗粒所带电荷的变化趋势可用一元三次多项式表示，电荷分布呈现带状区域，其所带的平均正电荷高于所带的负电荷。

"The material mix in this belt is most reminiscent of the stuff found in lava flows on Earth," Lisse said. I thought of Mauna Kea material when I first saw the dust composition in this system - it contains raw rock and it's abundant in iron sulfides , which are similar to fool's gold .

& &这个尘埃巨带中的混合物质使人想到地球上熔岩流中发现的物质，&利斯说，&第一次看见这个恒星系统中尘埃的组成成分时，我想起了夏威夷莫纳克亚山上的物质——其中包含原岩，富有含铁硫化物，类似于黄铁矿。

The curiously-shaped dust structure occurs in our neighboring Large Magellanic Cloud , in a star forming region very near the expansive Tarantula Nebula .

这奇怪形状的尘埃结构发生在我们周边的大麦哲伦星云，在非常接近巨大蜘蛛星云的一个恒星形成区域内出现。

LOMBOK GEL Belgium fabrics used synthetic fibers fire, about 10 mm, can be flame retardant, antistatic, no radiation, wear-resistant carpet surface to prevent duplication of soil dust into the indoors, in order to ensure the indoor environment clean and reduce the wear rate marble.

面料采用比利时LOMBOK GEL合成防火纤维材料，高约10 mm ，能阻燃，抗静电，没辐射，毯面耐磨可阻止泥土沙尘重复带入室内，从而保证了室内环境清洁和减少大理石的磨损率。

CHEER Europe and the United States and LOMBOK GEL, VEBE, BERRY GROUP mats companies, CHEER produce aluminum dust mats, the performance parameters are detected through international certification authorities.

CHEER与欧美LOMBOK GEL、VEBE、BERRY GROUP地垫公司合作，CHEER所生产的铝合金除尘地垫，各项性能参数均通过国际权威机构检测认证。

LOMBOK GEL Belgium fabrics used synthetic fibers fire, about 10 mm, can be flame retardant, antistatic, no radiation, wear-resistant carpet surface to prevent duplication of soil dust into the indoors, in order to ensure the indoor environment clean and reduce the wear rate marble.

面料采用美国高级除尘地毯，能阻燃，抗静电，没辐射，毯面耐磨可阻止泥土沙尘重复带入室内，从而保证了室内环境清洁和减少大理石的磨损率。

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。