Because the working media of laser is gas, and the pressure difference between the inner apparatus and environment of laser is large, so the window of output laser beam must be sealed.
由于其激光工作介质是气体，而且激光腔内的压力与外界环境压强相差很大，激光束的输出窗口必须密封。
Signal recording method, phase difference detecting circuit, and information apparatus.
信号记录方法，相位差检测电路，及信息装置。
Jianzui apparatus can also use percussion sheet surface, if the difference between larger business, the internal cavity.
还可以用尖嘴器具敲击板材表面，如果生意差异较大，就说明内部有空洞。
The principle of the Cross-correlation-coefficient algorithm and the absolute difference algorithm are introduced, all kinds of different noise type of CCD apparatus are analyzed.
简要阐述了互相关因子算法和绝对差分算法的基本原理； 分析了CCD器件各种不同的噪声类型；
An optical apparatus is disclosed which can reliably form AF images and split the AF images to provide excellent focus detection performance in the phase difference detection method.
公开了一种光学装置，该光学装置在相位差检测方法中能可靠地形成AF像并分离该AF像以提供优良的焦点检测性能。
In this paper, temperature difference self-power adjusting valve is used to make BF cooling apparatus change constant flux water supply mode to constant difference in temperature cooling mode.
针对高炉恒流量供水冷却方式的弊端，提出采用温差自力式调节阀使高炉按恒温差供水冷却方式冷却。
In this paper, temperature difference self-power adjusting valve is used to make BF cooling apparatus change constant flux water supply mode to constant difference in temperature cooling mode.
针对高炉恒流量供水冷却方式的弊端，提出采用温差自力式调节阀使高炉按恒温差供水冷却方式冷却。
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