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- Furthermore, it could activate non-inert gas effectively and offer a great deal of active gas composition.They are easy to react with laser ablating production and form compound film forerunner. 对非惰性气体的ECR微波放电能有效激活气体，提供大量高化学活性的气相成分，它们易于与激光烧蚀产物反应，形成化合物薄膜的先驱物；
- double-wire pulse metal active gas welding 双丝脉冲熔化极活性气体保护焊
- The orient has been playing an active role in the world economy. 亚洲一直在世界经济中发挥积极作用。
- He is an active member of the school's stamp club. 他是学校集邮俱乐部的一名活跃会员。
- An active volcano may explode at any time. 活火山随时都有可能爆发。
- Chemists study the nature of gases. 有的化学家研究气体的性质。
- The temperature of volcanic gases is very high. 火山气体的温度很高。
- Is it wise to engage in active sports at your age? 我这样的年纪积极参加体育活动是否明智？
- She was active as a left-winger in the party. 她是党内积极的左翼分子。
- He was very active and rode down several horses. 他劲头很大，一连骑了好几匹马。
- She plays an active part in local politics. 她积极参与地方政治活动。
- The steel market will continue to be active. 钢材市场将会继续保持活跃。
- An active volcano may erupt at any time. 活火山随时可能喷发。
- Air is a mixture, not a compound of gases. 空气是气体的混合物，不是化合物。
- The air is infected with noisome gases. 空气受到了有害气体的污染。
- He was disabled when on active service. 他在战斗中受伤致残。
- Ms. Brown is active in the party. 布朗女士在晚会上很活跃。
- An apparatus for measuring gases. 气体贮存计量器用来测量气体的一种工具
- The active boy was extremely distractible. 那好动的男孩极不专心。
- His lame foot disqualified him for active work. 跛脚使他无法参加积极活动。
