称为氕或轻氢。
有些能量凝结成了粒子，这些粒子组合形成了轻原子如氢和氦。
Some of this energy congealed into particles, which assembled into light atoms like hydrogen and helium.
一个由寒冷气体混合比氦要轻但是不会比氢重很多的大气层，意味着热气球将需要使用。
An atmosphere composed of a cold gas mix that is lighter than helium and not much heavier than hydrogen, means that hot-air ballooning will need to be used.
目的观察苯那普利联合小剂量氢氯噻嗪治疗原发性轻中度高血压的疗效。
Objective To observe the effect of Benazapril in combination with low dose of Hydrochlorothiazide on essential hypertension.
本文用过程模拟法对以轻烃为原料的制氢工艺作了能量分析。
This article presents the energy analysis, by means of process simulation, of hydrogen making process using light hydrocarbon feedstock.
本文考察了各种工艺条件对不同催化裂化汽油轻馏分临氢醚化反应醚收率的影响和各馏分反应特点。
The effects of operation conditions on ether yield of hydro-etherification of three light FCC gasoline fractions and the reaction characteristics of these fractions have been investigated.
研究了催化裂化轻汽油临氢醚化工艺，以降低催化裂化汽油的烯烃含量并提高辛烷值。
The hydroetherification process of catalytic cracking light gasoline is investigated for increasing octane number and decreasing the content of olefins of catalytic cracking gasoline.
这代表了一种富氢母源形成轻烃的特征。
This represents characteristics of light hydrocarbons which are generated from rich-hydrogen source rocks.
氢：一种轻的化学元素，化学符号H，原子序数1。
Hydrogen: Lightest chemical element, chemical symbol h, atomic number 1.
氢：一种轻的化学元素，化学符号H，原子序数1。
Hydrogen: Lightest chemical element, chemical symbol h, atomic number 1.
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