英德
有道
百度
谷歌
图片
维基
百科
经济阈值
[经] economic threshold
- 研究了烟粉虱在黄瓜上的经济损害水平和经济阈值。
The experiment was conducted to estimate the economic injury level (EIL) and economic threshold (ET) of B. tabaci. - 本文还探讨了该病的经济阈值，幷组建了阈值模型。
The economic threshold of M. incognita was discussed, and the corresponding models were established. - 烟粉虱的经济阈值为每株黄瓜有烟粉虱成虫18.4474头，即平均每片黄瓜叶有成虫4.6119头。
the ET of B. tabaci was about 18.4474 adults/plant, or 4.6119 adults/leaf.
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