The arrogance became his protective carapace.这种傲慢态度成了他的保护壳。He tickled gently at its glossy carapace,but the stubborn beetle would not budge.他轻轻地搔着甲虫光滑的壳，但这只固执的甲虫就是不动。small freshwater crustaceans with a shield-shaped cara...
The surface can be treated with galvanization.表面可电镀。Galvanization means coating metal with zinc, or the act of stimulating action.电镀是指给金属覆上一层锌, 或是一种刺激反应的作用.The unexpected news produced a kind of galvanization of the whol...
There are many good automatic, semiautomatic, and hand feeding devices available commercially.市场上已有许多优良的自动 、 半自动和手工饲喂装置出售.Manual control or electric control of pressure , time , temperature or semiautomatic control.操作采用手...