Mr. Dudley joined BP in 1999 after the company bought Amoco, an American oil company, and he oversaw exploration and production in a variety of countries before heading BP’s Russian joint venture.
1999年,英国石油公司收购了美国石油公司后,杜德雷先生加入了BP公司,在担任BP英俄合资公司一把手之前,他负责在多个国家的石油勘探及生产工作.
In this paper, the advantages of the manufacturing on the cutting copper tube joint with the cold extrusion heading technology are pointed out.
文中指出了采用冷挤镦工艺代替切削加工生产铜管接头的优点。
In this paper, the advantages of the manufacturing on the cutting copper tube joint with the cold extrusion heading technology are pointed out.
文中指出了采用冷挤镦工艺代替切削加工生产铜管接头的优点。
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