但到1979年和1983年才分别在原油管线和成品油管线上得到工业性应用。
It was, however, not until 1979 and 1983 that the friction reducer began to be industrially applied in crude oil and oil products pipelines respectively.
介绍了ZY F型钻孔液压封孔器的研制、实验室模拟试验及现场工业性应用试验情况。
The development, lab analog test and field test of Model ZYF hydraulic hole packer are presented in the paper.
如果将关注食物链顶端和底端的方法同时应用到全球性数据上，那么，科学家们得出的结论是，过去10年的工业捕渔更偏向捕食低食物链鱼类，而对高食物链等级的鱼类而言，它们的食物总量减少了将近一半，倘若按照食物链理论的逻辑，现存高食物链等级的鱼类总数是增加了而不是减少了，因此，不能够简单地认为，工业“捕渔”导致鱼类总体的数量减少。
Applying both methods to worldwide data, the scientists say industrial fishing over the past decades has not simply worked its way downwards from the top of the food chain -- it has gone upwards, too.
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