查询词典 weed-killing

On base of investigating and analyzing,the species,occuring ruleand disserve characteristics of alfalfa field weeds in Beijing area were discussed.And put forward weed control methods of alfalfa seedlings were put forward.

本文在调研、分析北京地区大田苜蓿地杂草种类、发生规律及危害特性基础上，采用土壤耕作、刈割和化学药剂相结合的措施，对苜蓿幼苗地和大田杂草进行综合防治，取得良好效果。

In another experiment, the Penn State researchers found that the dodder weed can make choices.

在另外的一个试验中，宾夕法尼亚州的研究人员发现菟丝子会做出选择。

The researchers also isolated tomato plant odors to test if the dodder weed would grow towards them.

研究人员将番茄植物的气味分离出来，来测试菟丝子是否会朝着这些气味生长。

The dodder weed may look stringy and small, but don't let that trick you.

菟丝子看起来纤细而弱小，但不要被其外观所欺骗。

The researchers isolated a chemical in wheat that repels dodder. This could lead to new ways of fighting the weed.

研究人员从小麦中提取的一种化学物质可以抵制菟丝子，所以有可能找到新办法来抗击这种杂草。

In the classification of weed types on dry farm land, the diversity of ecological conditions is of greater significance than dominant crops.

在划分旱地农田杂草类型时，环境条件的差异比栽培作物具有更重要的指示意义。

And a duffle bag full of underwear, and sweet, stinky weed.

还有装满内衣的行李袋以及一堆大麻。

I seem to deem his foreseeing of that the man will s eek seeds in the weed.

我好像相信他的预见人们将会在野草中寻找种子。

This rarely happens, but there are other more practical limits to endurance, including the need to reset instruments and to remove the inevitable weed, barnacles and other marine life that would encrust a glider during very long voyages.

这极少发生，但是仍有更多其他的现实因素限制它的持久力，包括重新安排设备以及铲除不可避免的海草，在长期的航行中，藤壶和其他海洋生物可能依附其上，给它包上一层硬壳。

Eupatorium adenophorum Sprengel is a kind of poisonous weed. At present, it is expanding more and more in southwestern part in China day by day, which is severely dangerous.

紫茎泽兰是一种恶性杂草，目前在我国西南部地区分布范围越来越大，危害日益严重，至今大规模防治的有效方法还未找到。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。