焊锡性测试最小测试频率是否为每批一次？
Is the solderability test frequency being performed at a minimum of once per lot?
介绍了计算机控制的宽带频率特性测试系统的设计。
Design of computer controlled wide range frequency response measurement system is introduced.
最初的产品线包括电子测试设备，磁线圈，线圈和无线电频率。
The initial product line consisted of electrical test equipment, magnetic windings, and radio frequency coils.
最初的产品线包括电子测试设备，磁线圈，线圈和无线电频率。
The initial product line consisted of electrical test equipment, magnetic windings, and radio frequency coils.
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