光盘装置，半导体器件，光盘及记录方法。
Optical disk device, semiconductor device, optical disk and recording method.
电力半导体器件故障电流(特别是短路电流)的确认与及时有效保护，对电力机车交流装置的可靠工作至关重要。
Acknowledge and in time effective protection of power semiconductors from fault current is of utmost importance for the reliable operation of AC equipment on electric locomotive.
电压测量方法，电测试方法和装置，半导体器件制造方法和器件衬底制造方法。
Voltage metering method, electric test method and device, and method for mfg. semiconductor device and device substrate.
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