英汉双语例句-生物医药大词典

It is mandatory to prevent the reverse flow of fire protection system substances, i.e. glycerin wetting agents, stagnant water and water of non-potable quality from being pumped or siphoned into the potable water line.

中文意思：
这种装置强制性防止消防系统物质，如湿甘油剂，停滞水和非饮用级的水通过泵吸或虹吸进入饮用水系统中。

以下为相关句子列表(点击查看，可以看对应的解释）：

	It is mainly used to produce the plastics door and windows profiles,the plastics decorative plates and PVC foaming profiles.			该生产线主要生产塑料门窗型材、塑料装饰板材、PVC发泡异型材等塑料制品。
	It is man who plays the leading role in the application of electronic computers.			在使用电子计算机时，起主要作用的是人。
	It is man's duty to be courageous enough to seek for truth.			勇于探索真理是人的天职.
	It is man's social being that determines his thingking.			人们的社会存在，决定人们的思想。
	It is mandatory for boiler manufacturers to state the standards of smoke concentration and blackness affected during initial discharge of their boilers on the latter's data plates, or in the latter's product manuals.			锅炉制造厂必须在锅炉产品铭牌或者说明书中注明锅炉初始排放的烟尘浓度和烟气黑度标准。
	It is mandatory to prevent the reverse flow of fire protection system substances, i.e. glycerin wetting agents, stagnant water and water of non-potable quality from being pumped or siphoned into the potable water line.			这种装置强制性防止消防系统物质，如湿甘油剂，停滞水和非饮用级的水通过泵吸或虹吸进入饮用水系统中。
	It is mandatory to prevent the reverse flow of fire protection system substances, i.e., glycerin wetting agents, stagnant water and water of non-potable quality from being pumped or siphoned into the potable water line.			这种总成强制性防止消防系统流体介质的倒流(回流)，如甘油润湿剂，积滞水和非饮用水，防止这些流体介质泵吸或虹吸进饮用水管道。
	It is mandatory to prevent the reverse flow of fire protection system substances, i.e., glycerin wetting agents, stagnant water and water of non-potable quality from being pumped or siphoned into the potable water supply.			这种应用强调必须防止下列消防系统物质，如甘油，润湿剂，积滞水和非饮用级别的水由于泵吸或虹吸作用回流到饮用水供应系统中。
	It is mankind's instinct for moral reasoning in action.			这是人类道德观念的本能在起作用。
	It is marked by the towering Space Needle.			太空针高塔是它的标志。
	It is market which provides places for organized trading in securities, manages ot trading of listed stocks and bonds, su lies the customers with the services of securities clearing, delivery, tra fer and storage, and with the market information.			它是专门为办理股票交易、管理上市股票和债券的现货交易提供场所、为客户提供证券的清算、交割、过户和保管以及市场信息的市场。