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- 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。
- I bought an amplifier yesterday. 我昨天买了一个扩音器。
- 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。
- 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
- vacuum amplifier 真空放大器
- vacuum amplifier (V-AMP) 真空放大器
- A gradual change in the output of a circuit or amplifier. 逐渐改变电路或放大器输出功率的逐渐改变
- Dirt and dust are drawn into a vacuum cleaner by suction. 污物和灰尘被吸入吸尘器。
- Output from the inverting oscillator amplifier. 内部反向振荡放大器的输出。
- 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。
- 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
- I am majored in audio frequency amplifier. 我主修音频放大器。
- REPAIR THE OPEN AMPLIFIER GROUND CIRCUIT. 维修断路的扩大器接地电路。
- The amplifier exploded in a fountain of sparks. 放大器爆炸，喷射出火星。
