这是第一次正式以实地实验的方式对这个问题进行检验。
This was the first experiment to formally put that question to a practical test.
大量实地实验验证了该方法的有效性和可行性。
Lots of experiments validate this method's validity and feasibility.
对我国北部温凉带地区草坪网球场草坪建植作了实地实验建议。
The technique of establshing turf in tennis court in warm and cool areas in the North of China is suggested in the article.
应用推荐