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- This suggested that the features of weeds control by fire were lower weeds density in spring and lower phytomass in autumn. 株数防控效果最好为5月份，为40.;95%25，植物量防控效果最好为10月份，为65
- He weed out one by one the book he do not want. 他把不想要的书一本一本丢掉。
- First thing tomorrow I'll weed the garden. 我明天一大早首先去除园内的杂草。
- We have to weed out unqualified applicants. 我们必须淘汰不合格的申请人。
- Weed density 杂草密度
- The density of population in this city is very high. 这个城市的人口密度非常高。
- We must weed out the traitors in our midst! 我们必须清除我们中间的叛徒!
- The area had a population density of five people per square mile. 该地区人口密度为每平方英里五人。
- She knelt down to pull a weed from the flower bed. 她跪下来拔除花圃上的杂草。
- Eurasian weed with heads of small yellow flowers. 有小黄花头状花序的欧亚杂草。
- He pulled off his coat and started to weed with us. 他脱去上装，开始和我们一起除草。
- I'll weed out crabgrass from a lawn. 我将除去草坪上的蟋蟀草。
- Weed out traitors from the army. 肃清军队中的汉奸分子。
- The density goes down exponentially with height. 分子密度随着高度的上升而指数衰减。
- You should weed the garden before supper. 晚饭前你该把花园的草除掉。
- The population density is evened out. 种群密度亦趋于均匀化。
- The new conductor start by weed out the weaker player in the orchestra. 管弦乐队新来的指挥一上任就先把较差的演奏人员清除出去了。
- Density exceeded 100 nests per mile. 丝巢密度超过每英里100巢。
- To weed, cultivate, or dig up with a hoe. 用锄割草、耕作或园艺
- They pulled up the weed by the root. 他们把野草连根拔起。
