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1·The seed transmission 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.

通过对播种盘和穴盘输送自动控制以及气力排种元件的电流反馈控制，实现了播种器高精度、高效率自动播种。