Railway applications - Electric equipment for rolling stock - Part 4: electrotechnical components - Rules for AC circuit-breakers.
铁路设施。机车车辆用电气设备。第4部分：电工元件。交流断路器规则。
Railway applications - Electric equipment for rolling stock - Part 3: Electrotechnical components; Rules for d. c. circuit - breakers.
铁路设施。机车车辆用电气设备。第3部分：电工元件。直流断路器规则。
At the same time, demand for large products such as windmill equipment and rolling stock has increased greatly, and the speed of large machine tools has increased as a result.
在同一时间，风车等大型设备和机车车辆产品的需求已大大增加，以及大型机床的速度因此而增加。
At the same time, demand for large products such as windmill equipment and rolling stock has increased greatly, and the speed of large machine tools has increased as a result.
在同一时间，风车等大型设备和机车车辆产品的需求已大大增加，以及大型机床的速度因此而增加。
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