Liquefied anhydrous ammonia--Determination of iron content--o-Phenanthroline spectrophotometric method

液体无水氨铁含量的测定邻菲罗啉分光光度法

属类：行业标准名称-国家标准名-GB/T8570.7-1988

Liquefied anhydrous ammonia--Determination of oil content--Gravimetric and infrared spectrometric method

液体无水氨油含量的测定重量法和红外光谱法

属类：行业标准名称-国家标准名-GB/T8570.6-1988

Thus, frequent adjustment of the control knob is required to maintain constant delivery pressure. This does not pose a problem, however, with pipelines and liquefied gas products where inlet pressure is maintained relatively constant.

因此经常要调整控制钮,以维持恒定的输出压力。但是,对于入口压力相对恒定的管道和液化气体产品而言,这不是一个问题。

属类：产品说明书-产品安全-

Liquefied petroleum gases, such as propane and butane, have not been included as they are too numerous to mention.

由于它们数量众多,无法一一提及,液化石油气体,如丙烷和丁烷没有包括在这里。

属类：产品说明书-产品安全-

Krypton occurs in trace amounts in the atmosphere and in rocks and is obtained by fractional distillation of liquefied air. It is used in luminescent tubes, flash lamps, incandescent light bulbs, lasers, and tracer studies.

在大气和岩石中只有极微量的氪,可以通过液态空气的分馏来得到它。氪用于荧光管、闪光灯、镭射以及示踪研究。

属类：化学及生命科学-化学-

At low temperatures, matter has unusual properties. Substances that are naturally gases can be liquefied at low temperatures, and metals lose electrical resistance as they get colder

在低温条件下,物质会表现出非同寻常的特性,气态物质会在低温条件下液化,金属变得更冷后会失去电阻性。

属类：自然科学-物理-

On tube trailers with liquefied compressed gases, gooseneck dip tubes are used, but the dip tube orientation is determined by the end of the tube trailer which is being accessed.

在装液化压缩气体的管道拖车上,使用鹅颈汲取管,但汲取管的方位由要接近的拖车的终端决定。

属类：产品说明书-产品安全-

Normally, helium is present in less than 1% by volume in natural gas. Helium is recovered, refined, and liquefied .

正常情况下,氦在天然气中的体积比是1%。氦要经过回收、提纯和液化过程。

属类：产品说明书-产品安全-

liquid or liquefied gas fuel in containers of a kind used for filling or refilling cigarette or similar lighters of a capacity not exceeding 300cm3

装在用于香烟打火机或类似打火机加注或再加注燃料的容器中的液体化气燃料,该容器的容积不超过300cm3

属类：物品名称-日用品-

The most common type of liquefied gas container uses a standard cylinder valve. In the upright position the liquid level is well below the valve inlet, preventing liquid from being removed.

最普通类型的液化气体容器使用标准钢瓶阀门。在垂直位置时,液体水平线在阀门入口以下很多,防止了液体的提取。

属类：产品说明书-产品安全-