Jacket ball valves shall be able to work norm ally under all field conditions specified in the technical specifications.

夹套球阀应能在本技术规格书规定的所有现场条件下正常运行。

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Consequently to find out their merit and shortage, and provide the reference for applying the system reliability theory in the field of shallow ocean jacket platforms.

从而找出两种方法各自的优点、缺点，为系统可靠性理论在海洋石油平台系统可靠性分析方面的应用提供了参考依据。

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This paper briefly outlines the major features of the jacket and topside structure in Pinghu oil and gas field development.

概括了平湖油气田开发工程中使用的导管架和平台上部结构的特点。

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My most precious asset surely was two pair of dry woolen socks, snug in my field jacket pockets.

FORBES: My Country Fails Me, Twice

"I like to play baseball, and, in my mind, a jacket doesn't belong on the baseball field, " Harvey said.

WSJ: Harvey 1 hit, 10 Ks in 7 innings, Mets top Padres