气吸式排种器 meaning in Chinese

suction feed

Experimental study on 2qxp - 1 type suction - seed metering device
1型气吸式排种器的初步试验
Experimental research of de - rowing qualification about 2qxp - 1 , type two - row suction seed metering device
1型双条气吸式排种器分条性试验
In order to enhance the sufficient effect and the metering quantity of suction seed metering device , the regulative keep - off shade of seed room and the appropriate mechanism structure were designed on the basis of analyzing the structure and basic principle of suction seed metering device
摘要为了提高气吸式排种器的充种效果及排种质量，在分析气吸式排种器结构和基本工作原理的基础上，设计了充种室种面调节挡帘，并改进了充种室结构。