查询词典 heavier-than-air

Are China's urban water supply and the mainstream of traditional disinfection methods, and more and more studies have shown that, in the face of heavier pollution, excessive use of chlorination methods will instead have a negative impact on water quality and safety.

是中国的城市供水和传统的消毒方法的主流，越来越多的研究表明，在重污染面前，过度使用氯化方法将改为对水质安全的负面影响。

Heavier nucleus was believed to be formed of a number of protons and electrons packed closely together.

人们相信，较重的原子核是由若干个质子和电子紧密聚集在一起而形成的。

The loss could have been heavier , but that was cold comfort.

这次损失不算太重，但那并不值得高兴。

For heavier packaging materials and supporting, and the option of 300 g or 300 g copperplate paper over the cardboard printing.

如需与较重的包装品配套，可选用300g铜版纸或300g以上的卡纸印刷。

Along with the weaken of the function of customs barriers, As a much shadier and much heavier in hand trade barrier, the influence of TBT is becoming stronger and stronger in the international trade, which has hampered the foreign trade in developing country.

随着关税壁垒作用的日益减弱，技术性贸易壁垒作为1种更隐蔽的、更难对付的贸易壁垒，在国际贸易中的影响越来越大，给发展中国家的对外贸易造成很大障碍。

Radium does not occur free in nature but occurs in natural ores such as pitchblende as a disintegration product of radioactive decay of heavier elements, including uranium.

在自然界镭不存在游离状态，但存在于天然矿石中，如沥青铀矿，是更重元素放射性衰变的产物。

Radium does not occur free in nature but occurs in natural ore s such as pitchblende as a disintegration product of radioactive decay of heavier elements, including uranium.

在自然界镭不存在游离状态，但存在于天然矿石中，如沥青铀矿，是更重元素放射性衰变的产物。

More reactive are the heavier isotopes of hydrogen , deuterium and tritium

更为活跃的是氢的较重同位素，氘和氚。

A chemical called deuterium is a heavier version of hydrogen.

例如，氚是氢的重配比同位素。

By the same token, heavier responsibility should devolve on factories, mines and some corporations.

相应地，也要加强厂矿企业、一些公司的责任。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。