以下为句子列表：
英文: 1 This system is used for the chemical laboratory and its functions to remove harmful vapors from the exhausted air by means of water or specified reagent dilution.
中文: 化学实验室排气系统需要有空气净化塔，通过水和特殊试剂对排气中有害气体进行洗涤。
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英文: A.C. rectified power supplies were not available; A.C.currents were not allowed in the whole building,a dampish corner in the basement of which served as our laboratory,with a dampish chemical laboratory overhead;we were in on the ground floor.
中文: （那时）不提供交流整流电源；整幢楼都不准有交流电，这幢楼地下室潮湿的一角便用做了我们的实验室，头顶就是一个潮湿的化学实验室；我们从一楼进入（自己的实验室）。
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