1.
Evacuate the equipment and break vacuum with an inert gas, such as nitrogen. Purge with an inert gas if equipment design does not permit evacuation.
对设备抽真空，然后充入不活泼气体，如氮。如果设备不允许抽真空，用不活泼气体来净化。
2.
It goes without saying that oxygen is the most active element in the atmosphere.
不言而喻，氧气是大气中最活泼的元素。
3.
Since dry carbon dioxide is a relatively inert gas, special materials of construction are not required.
由于干燥的二氧化碳是相对不活泼的气体，不要求特殊的建材。
4.
The children are very active,but never play up.
这些孩子很活泼，可是从不淘气。
5.
He was lively, witty, good-natured, and a pleasant companion.
他很活泼，机智，脾气很好，人缘也不错。
6.
a vibrant group that challenged the system; a charming and vivacious hostess; a vivacious folk dance.
挑战该系统生气蓬勃的团体；迷人的活泼的女主人；活泼的民间舞蹈。
7.
This is somewhat different from the atmosphere which prevailed in Philadelphia--more breezy and generous.
这里和费城的气氛有些不同——比较活泼，比较爽气。
8.
not active physically or mentally.
身体上或者精神上不活泼。
9.
It is the most plentiful of the rare gases making up approximately 1% of the earth's atmosphere. It is monatomic and extremely inert, forming no known chemical compounds.
它是最丰富的稀有气体，占地球空气的约1%。它是单原子，极不活泼，没有已知的化合物。
10.
She was vibrant with health and enthusiasm.
她健康活泼生气勃勃.
11.
become lifeless, less lively, intense, or active; lose life, force, or vigor.
变得无生气、不活泼、无激情或不积极；失去生命、力量或活力。
12.
GENERAL APPEARANCE : Low set, strong, sturdily built, alert and active, giving impression of substance and stamina in small space.
整体外形：矮，强壮，体格坚实，机警活泼，外观灵气，耐力强。
13.
a vibrant atmosphere, personality,performance
活跃的气氛、 活泼的个性、 有活力的表演
14.
According to this view, the most reactive monomer will yield the least reactive radical, and so on, because of their structural relationship.
根据这一观点，最活泼的单体应产生最不活泼的自由基，诸如此类，由于它们结构上的关系。
15.
liveliness and energy.
活泼生动、富有活力的气质。
16.
The components of solid propellants are of necessity highly reactive and essentially incompatible.
固体推进剂成分必须是很活泼的，基本上是不相容的。
17.
some appear handsome and innocent;
有的单纯活泼，好像还带有几分稚气，
18.
having a cheerful, lively, and self-confident air.
有一种愉快、活泼而且自信的气氛。