metering needle 中文意思是什麼
metering needle
解釋
調節針-
Needle valves are intended for use in applications that require precise metering control
針形閥適用於要求精確控制的應用場合。 -
Model fu - 3 - 6 needle spray gun with metering dispensing mechanism
帶定量吐出裝置的針狀噴槍fu - 3 - 6型 -
Study on spring needle device for preventing blockage of the suction hole used in vertical plate precision metering
垂直圓盤精量排種器彈性防堵塞裝置的研究
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