您要查找的是不是：
- mercury vacuum ga(u)ge 水银真空计
- thermionic vacuum ga (u)ge 热离子真空计
- thermocouple vacuum ga (u)ge 热电偶式真空计
- thermocouple vacuum ga(u)ge 热电偶真空计
- pressure vacuum ga(u)ge 真空压力计
- ionization vacuum ga(u)ge 电离真空规
- vacuum ga(u)ge 真空表,真空计
- vacuum ga(u)ge control circuit 真空计控制电路
- vacuum ga(u)ge pipe 真空计管
- vacuum ga(u)ge pressure 真空计压力
- thermocouple vacuum ga ge 热电偶式真空计
- thermionic vacuum ga ge 热离子真空计
- 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。
- 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。
- The shop repairs vacuum cleaners. 这家店修理吸尘器。
- Lab tests have been done with higher recoveries of Ga and Ge. 取得了较好的镓锗回收率指标,窑渣中锌和银亦可综合回收。
- The porter turned off the vacuum. 清洁工关掉真空吸尘器。
