Panic can constrict the blood vessels and impose an additional burden on the heart.恐慌会使血管收缩,增加心脏负担.Nerves constrict the blood vessels in the extremities of the body.神经促使人手脚处的血管开始收缩.Corset: Article of clothing worn to sha...
这张图片中羽毛状的泡沫是在铝土废料中形成的.This photo a plume of foam in bauxite waste.境内主要矿藏资源有煤 、 铁 、 石灰石 、 石膏 、 羊油甘 、 铝土等.The main mineral resources of coal, iron, limestone, gypsum, yang you Gan , such as bauxite.岩溶堆积型铝土矿是国内新类型的铝土矿床.Kars...