Boric acid works by abrading the roach 's shell or cuticle with its harsh particles .
硼酸通过强劲的分子可以损伤它的外壳或表皮。
When the trap door shuts , the plant excretes mucilage next to a special cuticle around the door , creating a watertight seal .
当陷阱阀门关闭的时候，植物在阀门周围的特殊角质层上分泌粘液，形成不透水密封垫。
The pigments form a layer between 0 40 micrometres deep under the insect 's cuticle , putting them in the perfect position to capture the sun 's light .
色素形成深埋于昆虫外皮下、介于0至40微米之间的薄层，这些薄层将被放在最适合的位置去捕捉阳光。
Cuticle is a waxy substance laid down on the leaf surface as it develops , so looking at leaf cuticle is essentially the same as looking at a leaf 's outermost cells - the epidermis .
