查询词典 gas-proof

Unlike the current M-4 and M-16 direct gas system with gas tube, the XM8 gas system does not introduce propellant gases and carbon back into the weapon's receiver during firing.

与目前的M - 4和的M - 16气体系统直接与燃气管，天然气的XM8系统并没有引进推进剂气体和碳回武器在发射接收机。

There are many calculating methods for dynamic gas reserves. Among them, pressure build-up method and pressure differential curve method are commonly used. This is due to their advantages and actual proof by field tests in application degree. But all of them have their own constraining conditions, so it is difficult to say which one is more reliable.

天然气动态储量的计算方法很多，其中压力恢复法和压差曲线法是计算气井动态储量的常用方法，它们有很多优点，其应用程度已被矿场实际证实，但它们都有各自限制的应用条件，很难说明哪种方法计算更可靠。

The products of our factory strictly according to GB3836-2000 gas environment of explosibility and standard production of equipment of electric apparatus of the explosion-proof production.Qualified through examining of the inspection office appointed by the country,obtain every certificate of competency.

我厂的产品严格执行GB3836-2000等爆炸性气体环境及防爆电器设备标准生产，经国家指定的检验机关检验合格，取得各项合格证书。

Fire-proof. It can keep in shape until 135℃. The product is chemical-resistent and will not send out any poisonous gas. With adhesive on the back, it is easy to install. And Ground Consolidate Glass Indicatory Sign is also available.

地面疏散指示标志采用0.1mm-0.25超薄PC贴膜，超强耐磨、耐污，热变形温度可达135摄氏度，抗化学性好，有良好阻燃性，不产生有毒气体，背面附强力粘贴胶，安装简便。

Underground space is provided with constant temperature, heat insulation, light shading, gas proof, concealment and security.

地下空间具有恒温、恒湿、隔热、遮光、气密、隐蔽、安全等优点，地下构筑物具有良好的抗震性、稳定性、隐蔽性、防护性、隔音性等特性。

It is then carefully cooled, again to a precise temperature / time profile, and packed in light-proof, gas-tight multi-layer valve bags that will allow CO2 out but will not allow air to enter.

允许 CO2出来，但是绝对不允许空气进入

We test, inspect and certify electrical, electronic, gas and oil-powered products, as well as building materials for both manufacturers and retailers around the globe. product safety testing, performance testing and benchmarking, electro-magnetic compatibility testing and systems certification are some of intertek s core capabilities for these industries. proof of compliance can result in the issuance of marks by intertek, including the etl listed and wh marks in north america, and the s, gs, asta, beab, and ce marks in europe.

创立100多年来，致力于以扎实的专业经验和卓越的服务体系，为全球制造商、分销商、零售商提供家用电器、暖通空调、制冷产品、照明产品、电动工具、零部件、多媒体产品、信息技术产品、医疗设备、工业机械、建筑设备等产品的电气安全测试认证、电磁兼容性测试、性能测试以及管理体系认证的全方位服务，帮助客户在瞬息万变的全球市场中稳操胜券。

Right, you point back to early 80s, when there were gas lines, high inflation, and people were mad because every time they left their houses, they saw proof that seem like America was crumbing.

是的，你指向了80年代早期，当还有着煤气管，高通胀以及愤怒的人群，因为每当其离开家里的时候，看到美国似乎摇摇欲坠的证据。

Purpose: KJZ2-1550/1140Z mineral explosion-proof and hypostases safety power supply intelligence vacuum combination switch is applied to applied to the terrible conditions such as gas, grime for mining.

用途： KJZ2-1550/1140Z矿用隔爆兼本质安全型智能真空组合开关适用于含有甲烷混合气体、具有煤尘爆炸危险的煤矿井下。

Purpose: KJZ-1500/1140Z mineral explosion-proof and hypostases safety power supply intelligence vacuum combination switch is used in the mine, which contains firedamp mix gas and has the danger of blast of grime.

用途： KJZ-1500/1140Z矿用隔爆兼本质安全型智能真空组合开关适用于含有甲烷混合气体、具有煤尘爆炸危险的煤矿井下。

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。