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- It is applied for the tempering heat treatment in various temp .To different workpieces of alloy steel , or stainless steel in the vacuum circumstance , filling inert gas or weak reducing atmosphere. 适用于各种合金钢、不锈钢等零件的真空、充填惰性气体或弱还原性气体气氛下的各种温度回火热处理工艺。
- Some pumps and all vacuum cleaners work by suction. 有些泵和所有真空吸尘器都是借吸力工作的。
- His wife's death left him a vacuum in his life. 他妻子的去世使他的生活变得空虚。
- His arrival was a happy circumstance. 他的来到是一件令人高兴的事。
- Her husband's death left a vacuum in her life. 她丈夫的死使她的生活变得空虚。
- Some people are living in a vacuum. 有些人过着与世隔绝的生活。
- A vacuum cleaner is a handy household tool. 吸尘器是一种使用方便的家庭用具。
- By necessity; by force of circumstance. 强制地通过需要; 通过环境的力量
- The shop repairs vacuum cleaners. 这家店修理吸尘器。
- The porter turned off the vacuum. 清洁工关掉真空吸尘器。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符号
- Sealed under low pressure or a partial vacuum. 抽空密封的在低压或部分真空状态下密封起来的
- A point or circumstance on which subsequent events depend. 关键，转折点一种发展过程所依赖的某种事物
- The explorer told of his adventure with great circumstance. 探险者详细叙述了他的冒险经历。
- vacuum circumstance 真空条件
- Dirt and dust are drawn into a vacuum cleaner by suction. 污物和灰尘被吸入吸尘器。
- An accompanying thing or circumstance; a concomitant. 伴随物伴随的事物或情况; 伴随物
- We could not pull apart two plates which enclosed a vacuum. 如果两个盘子间是真空，我们就无法将它们分开。
- Economic collapse is a rare circumstance. 经济崩溃是不太可能发生的事。
- Operating by means of suction or by maintaining a partial vacuum. 抽真空的用吸取的方式或用维持部分真空的方式来运作的
