以工厂化育秧的农艺要求为背景，设计了针状气吸式精量播种装置，介绍了其工作原理和相关参数。
According to the demands of agronomic technology for the background of industrialized rice seeding nursery, rice precision needle-like suction seeder was designed.
指出必须严格按照统一的、规范的方法进行试验，才能使各种工厂化育秧设备的性能指标具有可比性。
It pointed out that we must obey a uniform and normative method to do the test to make the performance indexes of various factory seedling facilities comparable.
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