Type of fodder grass, common in Africa. Also used for erosion control.
一种饲料草，在非洲很普遍，也用于控制水土流失。
This paper analyzes the leakage and its influence factors of the common-rail accumulator type electronic control injector. The static and dynamic sealing test is done.
全面分析了共轨蓄压式电控喷油器的泄漏部位及影响因素，进行了静态和动态的密封性试验。
The structure and principle of the LV-3 type height control valve in Japan are described. And the common troubles appeared in application of the height control valve are analyzed.
介绍了日本LV 3型高度控制阀的结构和原理，并分析了该高度控制阀在运用中出现的常见故障。
The structure and principle of the LV-3 type height control valve in Japan are described. And the common troubles appeared in application of the height control valve are analyzed.
介绍了日本LV 3型高度控制阀的结构和原理，并分析了该高度控制阀在运用中出现的常见故障。
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