蛛形类

Like a number of the world's jumping spiders, these arachnids have evolved to look like ants, a strategy that plays into the antipathy many predators have for the aggressive, noxiously armed, and ecologically dominant social insects.

和世界上相当一部分的跳蛛一样，这些蛛形纲生物进化得看起来和蚂蚁一样，它们采取的是一种与其他掠食者截然不同的战略，多数掠食者极富攻击性，武装得凶神恶煞，在生态链上主宰着群居类昆虫。

Any of numerous small bloodsucking parasitic arachnids of the family Ixodidae, many of which transmit febrile diseases, such as Rocky Mountain spotted fever and Lyme disease.

虱类蜱总科的多种小型吸血寄生蛛形动物，其中许多可以传播洛矶山脉斑疹热和莱姆氏病等热病

Has the orb-web a monophyletic or a polyphyletic origin? In other words, is Orbiculariae (Deinopoidea + Araneoidea) monophyletic or polyphyletic? There is a considerable dispute about phylogenetic relationship between Deinopoidea and Araneoidea.

但关于妖面蛛总科和园蛛总科间系统发生关系，即圆网蛛类是否为单系起源，换言之，圆网究竟是经历一次进化还是多次进化，多年来始终是悬而未决的蛛形学难题之一。

Any of numerous small bloodsucking parasitic arachnids of the family Ixodidae, many of which transmit febrile diseases, such as Rocky Mountain spotted fever and Lyme disease.

虱类：蜱总科的多种小型吸血寄生蛛形动物，其中许多可以传播落基山脉斑疹热和莱姆氏病等热病

These imposing arachnids can be huge, with some species exceeding 5 inches (12 centimeters) in diameter.

这些令人难忘的蛛形类能是庞大的，有些种类超越5英寸（12厘米）的直径。

But these awe-inspiring arachnids are intimidating in looks alone; their venom is harmless to humans, less painful than a bee sting.

但这些敬畏令人振奋的蛛形类仅仅是咄咄逼人的容貌；它们的毒液对人类是无害的，一点儿痛比起蜜蜂的刺。

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。