查询词典 major

He is a Major in the US Air Force.

他是美国空军的少校。

Production of my company major, sale is used at factory of chemical plant, shoe, electron factory, eletroplate air exhauster of the horn of the factory such as the factory, storehouse negative pressure, crust uses glass reinforced plastics to make, acid-proof alkaline, anticorrosion, the structure is beautiful, horary only 750W of bad news report, wind force can amount to 44500M3/H, energy-saving, efficient.

东莞市祥发通风净化设备有限公司生产供应化工厂、鞋厂、电子厂、电镀厂用喇叭型负压抽风机。我企业职业岀产、行销用在化工厂、鞋厂、电子信息厂、电镀厂等厂子、仓库的喇叭型负压抽风机，外壳使用玻璃钢制造，耐酸碱、防止腐败蚀，构架好看，每钟头仅耗电750W，风力可达到44500M3/H，节省能源、有效。

The four major goals of Earth Day 2000 are clean cars, clean power, clean air, and

地球日2000的4个主要目标是清洁的汽车、能源、空气和清洁的投资。

Air pollution is one of the major problems of the modern world.

空气污染的主要问题之一的现代世界。

Air Pollution Air pollution is one of the major problems of the modern world.

空气污染空气污染是当今世界的主要问题之一。

One of the major aims of the air raid was the complete demolition of all means ofcommunications by bombing.

这次空袭的一个主要目的，就是通过轰炸彻底摧毁敌人的通讯设施。

One of the major aims of the air raid was the complete demolition of all means of communications by bombing.

这次空袭的一个主要目的，就是通过轰炸彻底摧毁敌人的通讯设施。

Shooting competitions are divided into two major events: Air Rifle and Pistol competitions at three distance: 10, 25 and 50m.

比赛分男子组、女子组和混合组，选手分别参加**和步枪的比赛。**分为10米、25米和50米项目，每个小项都采用电子靶。

A survey of indoor air has shown that there were a wide variety of pollutants, in which total volatile organic compounds were major ones.

室内空气中污染物的种类很多，总挥发性有机物是重要的一项。

Central air conditioning is a major focus for the air-conditioning system in the wind, their control than tank air conditioning system is more complicated.

中央空调是一种大型集中供风的空调系统，其控制系统较之柜式空调更为复杂。

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。