广大工农群众在农具改革运动中,改革成功很多种改良播种机和简单、适用的播种部件。为了使大家了解现有排种器的构造和大致工作过程,把我们看到的一些排种部件简述如下。一、筛式排种器: 主要用于表面不光滑的圆粒种子,如谷子、高粱 In the campaign of reforming farm tools, the broad masses of workers and peasants have succeeded in reforming many kinds of improved seeders and simple and suitable seeding parts. To familiarize you with the configuration and general workings of your existing seed metering device, here are some of the seed-setting components we saw. First, the sieve seed metering device: mainly used for the surface of non-smooth grain seeds, such as millet, sorghum