一是应考虑排气压力的高低和排气量大小。
One is the exhaust pressure should be considered the discretion of displacement and size.
用途：常用于要求抽气时间短和排气量大的场合。
AppIications: Mostly used where short pumping time and large throughput are required.
美观大方、穿着舒适、排气量大、透气性好、柔软性和张力相结合，达到尽善尽美。
It is artistic and in good taste, it is comfortable for dressing, it has big exhaust, ventilate well. It is perfect cause of combine soft with tension.
美国人一直喜欢排气量大的汽车，这样做可以不打破这个传统保持美国人的这一老习惯。
Americans have traditionally preferred bigger vehicles and, without the prod, might cling to old habits.
介绍了实验室通风柜、化验台的通风排气量的计算方法，提出了在冬季采暖新风耗热量大的情况下的补风节能措施。
This paper gathers up many methods and forms of formula in calculating the amount of air-removal through ventilation cabinet in laboratory.
介绍了实验室通风柜、化验台的通风排气量的计算方法，提出了在冬季采暖新风耗热量大的情况下的补风节能措施。
This paper gathers up many methods and forms of formula in calculating the amount of air-removal through ventilation cabinet in laboratory.
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