查询词典 weed-cutting

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。

A research platform was constructed for gene cloning and functional analysis in Eupatorium adenophorum in this study to provide a theoretical basis for the all-sided control of this malignant weed through the research in metabolic pathway related to allelochemical. By the study, we try to find out the coding gene of key enzyme which is related with the metabolism of allelochemical and clone some novel genes which can be used in agricultural production.

针对紫茎泽兰基因的克隆和功能分析建立了研究平台，通过开展紫茎泽兰的化感相关的代谢途径的研究，为这种恶性杂草的综合治理提供理论依据，以期能够找到调控化感物质代谢的关键酶的编码基因，发掘一些能够为农业生产所利用的新基因。

The pathogenicity of 19 strains of Alternaria alternata isolated from Eupatorium adenophorum was studied. 5.8S rDNA, ITS1 and ITS2 sequences of 22 strains from crofton weed and other plants were analyzed.

对分离自紫茎泽兰的19个链格孢菌菌株的致病性进行了比较研究，并对这19个菌株和其它来源的3个菌株的5.8S rDNA及其两侧的ITS1区和ITS2区进行了序列分析。

To understand the characteristics of the community with dominant species of a invading injurious weed, Eupatorium odoratum, which is widely distributed in Guangxi Province, the floristic composition, geographic elements, life forms, species diversity in the community as well as community structure were investigated.

对隆安屏山石灰岩山地有害的入侵杂草飞机草群落的区系组成、地理成分、生活型、结构及物种多样性进行统计分析，结果表明：该群落内常见的维管植物约有62种，隶属38科58属。

When farmers have exhausted all virgin forest on their land they begin to cultivate dryland rice in the bush-fallow Once they are cultivating in bush-fallow, increasing weed populations and declining yields result in an ever-shortening fallow period until a time is reached when it is no longer worthwhile for the farmer to continue.

当农民已经用尽了所有的原始森林在自己的土地，他们开始培养在丛林中，休耕（barbecho一旦他们在丛林休耕培养）陆稻，增加在日益缩短休耕期的时间，直到杂草种群和产量下降的结果到达时，它不再是值得农民继续。

Summer fallow is the best method of destroying weed s.

夏季休耕是消灭杂草的最好办法。

You know,Flo,have you seen the new weed whackers we've got out front?

我不参与。你知道，弗洛，你看见新型除草剂了吗？

This plant is a weed of wheat fields, and is used as fodder.

这植株是一种小麦田野的杂草，并且被用作饲料。

Foetid Eurasian weed having round flat pods; naturalized throughout North America.

臭味的欧亚杂草，有扁圆的荚；北美洲广泛种植。

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。