Sine in conjunction with the principle of using the gauge block according to the composition of the standard sine angle to the horizontal comparison method by differential measurement of the workpiece angles and inside and outside the cone of a precision measuring instruments.

正弦規(guī)是配合使用量塊按正弦原理組成標準角，用以在水平方向按微差比較方式測量工件角度和內国产激情视频免费在线看、外錐體的一種精密量儀秋霞电影网717。

JDS-1 Interferometer is applicable for measurement of 3-4 grade gauge blocks or precision sizes up to 150 mm by high-precision comparison with a higher grade of gauge block or a standard reference component.

本儀器是一種采用量塊或標準零件借以高精度的比較方式的立式精密長度計量儀器。

Domestic micro-hardness, the microscope, the volume of block, needle gauge, thread gauge, needle Domestic Regulation precision granite platform, Scale Block, spring testing machine

國產(chǎn)顯微硬度計欧美AⅤ一区二区三区视频、顯微鏡偷拍美女插B、量塊、針規(guī)污污网站在线免费色、螺紋量規(guī)a片在线观看的、針規(guī)★國產(chǎn)精密花崗石平臺、量表座、彈簧試驗機

precision gauge block：精密塊規(guī)

precision frequency standard 精確頻率標準 | precision gauge block 精密塊規(guī) | precision gauge 精密量規(guī)