The seedtransmission rate had no relations with seed-coat spots in the same variety , but the rate of different varieties was remarkably different.
同品种内种传率与种皮斑驳程度无明显关系，而不同大豆品种种传率表现明显差异。
2
In modernized high-seed automatic machine, often used the intermittence and graduation transmission mechanism with worm-cam and roller-gear.
在现代高速自动机中 ，经常使用蜗杆凸轮—滚子齿轮间歇分度传动机构。
3
By sowing disc and plug transmission automatic control and current feedback control of pneumatic metering components, for seed high accuracy, high efficiency automatic seeding.