小而无毒的蜘蛛类节肢动物，形似无尾蝎。
蜘蛛类的相对丰盛度远远高于捕食性昆虫类。
The abundance of spiders was far higher than that of predatory insects.
最意想不到的发现之一是我与一族蜘蛛类生物的相遇。
One of the most unexpected surprises was my encounter with a race of arachnid creatures.
在天敌功能团中，瓢虫类恢复能力较强，蜘蛛类与寄生性天敌类较弱。
Among the functional groups of natural enemies, ladybirds had a stronger ability of recovery, while spiders and parasitoids were weaker.
通风条件不足，也能导致植物生长不良和发生较为严重的蚧虫类、红蜘蛛类等危害。
The insufficient ventilation also causes poor plant growth and the insect pests of scale insects and spider mites.
一种囊状的呼吸器官，见于蝎子和蜘蛛等蜘蛛类节肢动物，由象书的纸页一们平行排列着的膜状重叠物组成。
A sacculate respiratory organ found in some arachnids, such as scorpions and spiders, consisting of several parallel membranous folds arranged like the pages in a book.
一种囊状的呼吸器官，见于蝎子和蜘蛛等蜘蛛类节肢动物，由象书的纸页一们平行排列着的膜状重叠物组成。
A sacculate respiratory organ found in some arachnids, such as scorpions and spiders, consisting of several parallel membranous folds arranged like the pages in a book.
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