contradistinctive

The paper design five different type inners of the precision rice direct-seeder metering mechanism, and do seeding contradistinctive test by using four unlike paddy, do sprouting contradistinctive test between seeding by the mechanism and seeding by people.

本文对水稻精量穴直播排种器型孔设计了5种不同的样式，并且分别对4种不同尺寸类型的稻种进行了排种对比试验、机器播种与人工播种发芽的对比试验。

The program realizes many functions such as automatic counted operation quality, up-transmission of sounding data, optical theodolite and 701 radar contradistinctive observation data. It make the operation in high observation get a further progress in the aspects of standardization as well as automatization.

程序实现了测报质量自动统计、探空原始资料上传和光学经纬仪与701雷达对比观测数据处理程序化等功能，使高空探测业务工作在规范化、自动化方面更进一步。

Through contradistinctive research, several rules of fault-tolerant design were achieved, which could guide the design of PMSM. Secondly, the inductance and harmonic of a three-phase 12-slot 10-pole fractional slot concentrated winding PMSM were researched.

通过对比研究，找到了实现容错设计的若干规律，用于指导本文电机的设计。其次，重点研究了一个3相12槽10极分数槽集中绕组永磁同步电机的电感和谐波。