牙医洗手的时候,他望着快掉下来的破碎的天花板,上面有一张结满灰尘的蜘蛛网,网上留着蜘蛛卵和死了的昆虫。
While the dentist washed his hands, he saw the crumbling ceiling and a dusty spider web with spider's eggs and dead insects.
这些蜘蛛结成很大的网,雌性蜘蛛在上面用成百上千的卵悬挂茧。
These spiders spin large webs in which females suspend a cocoon with hundreds of eggs.
有些蜘蛛网可以用作盛卵箱。
比如,我们观察过进食这些蝽卵的蟑螂,还有蜘蛛蟾蜍之类,有些鸟也吃。
We have observed things like praying mantis just feasting on them, some spiders, toads. Some birds do eat them.
小蜘蛛离开卵以后很快散去,但网仍然留在原处。
Spiderlings disperse soon after they leave their eggs, but the web remains.
这些卵变成幼瓢虫之后就是园丁们最好的朋友之一了,它们是凶猛的食肉动物,尤其针对粉虱与红蜘蛛。
These eggs turn into ladybird larvae, which are among the biggest friends we gardeners have. They're ferocious predators on problem whitefly and red spider mite.
利用原子力显微镜研究了蚕丝丝素、蜘蛛牵引丝及其内外层包卵丝的微观结构。
The microstructures of Bombyx mori fibroin and dragline, egg-case silk fibers of Araneus Ventricosus spider were studied by atomic force microscopy (AFM).
利用原子力显微镜研究了蚕丝丝素、蜘蛛牵引丝及其内外层包卵丝的微观结构。
The microstructures of Bombyx mori fibroin and dragline, egg-case silk fibers of Araneus Ventricosus spider were studied by atomic force microscopy (AFM).
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