它们用于提高放大电路的增益和实现输出阻抗匹配，提高电流复制精度，减小电压增益误差。
They are used to enhance the gain of amplifier and realize the impedance matching, improve the current copying precision, decrease the tolerance of voltage gain.
电铸是一种利用金属离子阴极电沉积原理来制取金属零件的工艺技术，具有极高的复制精度。
Electroforming, which possesses the merit of high manufacturing precision, is a manufacture technology that is based on principle of cathodic metal deposit.
在复制法激光打孔中，激光束的横向模式决定着加工孔的形状和尺寸精度。
In the process of duplicate laser boring, the crosswise pattern of laser beam determines the precision of the processing hole's shape and size.
稳产高产复制高精度圆光栅是满足国内日趋扩大的需求量的唯一途径。
Photocopy of high precision circular gratings with high and stable yields is the only way to meet the domestic needs which increase gradually.
本文对大米、小麦粉精度标准样品的研制、复制和使用等具有参考作用。
The paper has importance of direction in preparation and repetition of standard control sample of rice and wheat flour fineness.
现在重新重视历史建筑的精度，每个客房配有第十九世纪早期的复制品，高高的天花板和东方地毯在原始的硬木地板。
Now restored with attention to historical and architectural accuracy, each guestroom is furnished with early 19th Century reproductions, high ceilings and Oriental rugs over original hardwood floors.
在复制法激光打孔中 ，激光束的横向模式决定着加工孔的形状和尺寸精度。
Optimum selection of precision laser drilling with laser beam characteristics as well as optical and working parameter;
在复制法激光打孔中 ，激光束的横向模式决定着加工孔的形状和尺寸精度。
Optimum selection of precision laser drilling with laser beam characteristics as well as optical and working parameter;
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