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.
由于育秧手续与技术的改进，每年育秧次数能从五次增加到二十次以上。这种方法也能得到较好的秧苗。
Because of the improvement in the techniques and processes of seedling nursing, The Times of cultivating can be increased from about five times to twenty times over a year.
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