这限制了在拍摄每一张照片时部件需要调整的配件的运动，并造成按下快门按钮和拍摄图像之间的延迟现象。
This limits the number of moving parts which need to be adjusted every time a photo is taken, and which cause a lag between pressing the shutter-release button and capturing the image.
作为控制装置中用来测试水分感应零件的配件，还需要提供正常关闭按钮和氖指示灯。 收藏。
A normally closed pushbutton and neon indicating lamp are provided as a part of the control for testing the moisture sensing components.
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