... subsurface applicator 亚表土施肥机 suction drill 气吸式播种机 suction strainer 吸液滤网 ...
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There are many factors affecting the characteristics of the suction-type metering device for precision drill. The important one is the vacuum degree or suction power of the vacuum chamber.
影响气吸式排种器排种性能的因素很多，而决定吸力的吸室真空度是很重要的因素。
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