查询词典 chemical energy

The EPA spent $ 1.5 million on an untested chemical method to neutralize the pesticide ethylene dibromide.

例如，1986年在一起未经检验的化学物质方案中，EPA向EDB支付的损失费高达150万美元。

In China, the main producers of ethylene dichloride are Beijing Huaer Company Limited, Jiangsu Danhua Corp Co., Ltd. and Shandong Luyue Chemical Company.

我国二氯乙烷的主要生产厂家有北京化二股份有限公司、江苏丹化集团有限公司和山东鲁岳化工有限公司。

Dichloride:a chemical compound containing two chlorine atoms bound to another element or radical.

二氯化物：由两个氯原子与另一个元素原子或基团结合形成的化合物。

The chemical also reduces dichloromethane extractives by controlling calcium before it can react with fatty and resin acids.

这些化学物质能够通过控制与脂肪树脂酸化反应前的钙，减少二氯甲的溢出。

The standard Determination of the chemical oxygen demand is dichromate method , with the most widespread application.

测定化学需氧量的标准方法是重铬酸盐法，应用最为广泛。

In this paper,by the University has been the chemical knowledge of the potassium dichromate has no mercury titration experiment, given the conditions and the determination of reliable analytical methods.

本文应用大学已获得的化学知识，对已有的重铬酸钾无汞滴定法进行实验研究，给出了测定条件和可靠的分析方法。

Newer processes such as chemical mechanical polishing and silicon wafer dicing can be better understood as tribological processes.

更新的过程，例如化学机械擦亮和掷骰子赌博的矽片，可能被作为tribological 过程理解得好。

I was a working-class kid in a small working-class New England mill town, and my father worked in a chemical factory in the even bleaker and more Dickensian factory town next door.

我是个新英格兰矿区工人家庭的孩子，父亲在邻镇化工厂上班，那个镇比我们家所在的地方还要荒凉些。

R Dickey put together a team of electrical and chemical engineers and, together, they started looking at metals and metal alloys that are soft at room temperature.

ickey博士组织了一个由电气工程师和化学工程师组成的团队，然后他们开始筛选在室温下有着柔软特性的金属或金属合金。

Dr Dickey put together a team of electrical and chemical engineers and, together, they started looking at metals and metal alloys that are soft at room temperature.

迪基博士集合了电气和化学方面的工程师，组成一个研究组，开始合力着眼于那些在室温之下很软的金属和金属合金。

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。