为与铲式成穴器的结构特点相适应,选择倾斜圆盘勺式玉米精密排种器作为打穴播种机的排种机构。
For the usage of the spade soil opener in a punch planter the precision metering device with declined scoop type disc was selected for maize seeds.
设计了适合于刷轮式苗盘精播装置的强制排种机构。此机构主要由投种器、传动系统和动力机构组成。
The seed discharging mechanism for seeding-tray precision seeding device with Brush Wheel is designed, composed with seed pitching apparatus and drive gearing .
传统的特排广告仅仅是一种浪费,大型媒体购买机构群邑集团中的Jakob Nielsen说道。
Conventional display ads are simply wasteful, says Jakob Nielsen of GroupM, a large media buyer.
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