型系列套筒式户内高压真空断路器已经通过了以下的各种试验，可以确保其安全运行。

WVS-12 (B) Series Sleeve-Type Indoor High-Voltage Vacuum Circuit Breaker has passed the following tests to ensure the safe operation.

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在理论分析和模拟试验的基础上设计了2bs - 360型气动式水稻钵育联合精量真空播种机，并对其工作过程进行说明。

In the theoretical analysis and simulation experiments designed on the basis of 2bs-360 the air-suction seeder for Sowing Rice in Bowl-seedling Tray Which Made of Straw, and the process of its work.

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