Code disc or grating disc is the core component of photoelectric displacement precision measuring instrument and grating measuring equipment.
码盘、光栅盘是光电位移精密测量仪器和光栅计量测试设备中的核心元件。
The utility model is mainly composed of electromagnet, a valve core, a valve disc, a chassis, a connecting pipe and a guide frame.
它主要由电磁铁、阀芯、阀盘、底盘、连接管和导架组成。
Methods: The new artificial disc was made of two titanium alloys end plates and one polyethylene slide core.
方法：用钛合金制成上下盖板，用超高密度聚乙烯制成中间的滑动核。
When opening the valve, the valve disc is parallel with the flow direction. The flow resistance is little, the flow section is large and the core will not be eroded.
蝶阀在开启时蝶板与流体流向平行，流阻小，流通截面大，阀芯不易被冲刷；
When opening the valve, the valve disc is parallel with the flow direction. The flow resistance is little, the flow section is large and the core will not be eroded.
蝶阀在开启时蝶板与流体流向平行，流阻小，流通截面大，阀芯不易被冲刷；
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