Prolong the material tube life in use.

延长料管和柱塞头的使用寿命。

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Based on the mechanism of gun erosion of interior ballistics, the method and process of predicting the gun tube life are presented.

该文根据火炮膛内烧蚀机理，提出了预测身管寿命的过程和方法。

youdao

Lounging in front of the tube not only eats up hours in your day, it may also shorten your life, according to a new study.

一项新研究称，懒洋洋地呆在电视机前，不仅会消耗你的时间，而且会缩短你的寿命。

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Ms Van Outen is the latest addition to the cast of Tube Tales, which tells real-life stories of strange happenings on the capital's Underground network.

BBC: denise van outen

Daniel Harrison, who is four-and-a-half, has refused to eat or drink for most of his life and so is fed through a tube in his stomach.

BBC: Food-fear boy Daniel Harrison to have treatment abroad

When he retired after 44 years with the Tube he felt like "something had gone out of my life", he added.

BBC: London