Vacuum valves, vacuum pumps and vacuum flange connections are the three leading products, we possess import-export operations, and more than ten self-developed patent products.

以真空阀门、真空泵及真空法兰连接件三大类为主导产品，拥有自营进出口经营权和十多项自主研发的专利产品。

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The stator blade flange extends away from each blade such that the secondary leading edge points generally to the primary leading edge of a preceding stator blade.

该导轮叶片凸缘从每个叶片延伸出，从而使得次前缘通常指向前一导轮叶片的主前缘。

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The stator blades each define a primary leading edge, a trailing edge, and preferably include a flange defining a secondary leading edge.

每个导轮叶片定义了主前缘，后缘，和优选包括定义次前缘的凸缘。

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