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Lastly, he has his own fauna, which he observes attentively in the corners; the lady-bird, the death's-head plant-louse, the daddy-long-legs,"the devil," a black insect, which menaces by twisting about its tail armed with two horns.

他还有自己的动物学，是他在各个地区细心研究的：好天主虫、骷髅头蚜虫、长腿蜘蛛、&妖精&？？扭动着双叉尾巴来吓唬人的黑壳虫。

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。