幼虫的

They found that one compound killed the parasite at every level of development – from larva to adult.

他们发现这种化合物可以杀死从幼虫到成虫的各个阶段的寄生虫。

If you fish then you can use the larvae inside as excellent bait.

如果你的鱼，那么你可以使用的最佳诱饵幼虫内。

The larvae attached to abnormal time is different.

幼虫附着变态的时间也是不同的。

They are incapable of making their own nests, or of feeding their own larvae.

他们不会造自己的窝，也不会抚育自己的幼虫。

Unfortunately, 95% of a flea population consists of eggs, larvae and pupae.

不幸的是， 95 ％的跳蚤由跳蚤卵、幼虫和蛹组成。

But in too high or too low temperature or salinity in the larval metamorphosis attachment for a long time.

但在过高或过低的温度或盐度中幼虫附着变态所需的时间比较长。

The duration of the larval period depends on temperature, food source and other factors.

蚊虫的生长发育过程，是在水中经过卵、幼虫和蛹的发育，后由蛹羽化出成虫。

They found that one compound kill ed the parasite at every level of development from lava to adult s .

他们发现一个混合物能杀死每个发展阶段的，即由幼虫到成年，的寄生虫。

Dendroctonus valens LeConte was recently found in outbreak in China. Its elder instars and mature larvae mainly over-winter under the roots of the pine stumps and standing trees in China.

红脂大小蠹Dendroctonus valens LeConte (Red turpentine beetle， RTB)是近年来在中国爆发的入侵生物，在我国主要以老熟幼虫在油松伐桩和立木的根部越冬。

Objective To explore the expression pattern of Attacin genes encoding in larva of Musca domestica for further studying of innate immunity.

目的 探讨家蝇Attacin mRNA在幼虫各个时期的表达，为进一步研究家蝇的免疫防御打下基础。

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。