查询词典 sealed

It can be hard for an adoptee to find their ancestry and records when they have been sealed.

可以努力的收养人找到自己的祖先和记录时，他们都已经被封锁。

Packing material made of air bubble s that are encased between two poly sheets as they are sealed together.

包装材料，由两块聚酯薄膜密封在一起而在它们之间装入的气泡制成。

A NASA study found that houseplants remove up to 87 percent of toxic indoor air inside a sealed chamber within 24 hours.

美国宇航局的研究发现， houseplants删除高达百分之八十七的有毒室内空气内密封商会在24小时内。

Automobile air condition condenser ; Characterization and evaluation ; Corrosion test ; Sealed inspection ; Metallographic examination ; SEM

汽车空调冷凝器；表征与评价；腐蚀试验；密封性检验；金相检验；扫描电子显微镜

After the air after a gap is formed by two large sealed gear cavity.

气流经过间隙之后，是两密封齿形成的较大空腔。

It leaves an air pocket, vacuum-sealed.

它就会排出气泡打破真空状态

We sealed the leak so the tube could hold air again.

我们封住了这根管子漏气的地方，可以再充气了。

It minimizes the consumption of compressed air to almost nothing for an air-driven pump in a sealed system.

它最大限度地减少了压缩空气消耗几乎没有空气驱动的水泵密封系统。

The airman 's carelessness sealed his fate.

那飞行员的疏忽决定了他的命运。

I am sealed in a cottage of glass that is completely airtight.

我生活在一个密不透风的玻璃小屋中。

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。