囊性纤维化是最常见的致命遗传疾病。Cystic fibrosis is the commonest fatal here-ditary disease.“ 我是十年宦囊,尽付东流!" Every penny of ten years'savings down the drain!胆囊疾病和胰腺囊性纤维性变也常常纠缠我.Gall - blader disease and cystic fibrosis also often in...
The detection environment, method and new progress of electroslag casting are introduced.介绍了电渣熔铸金属液位的检测环境 、 方法和最新成果.They should make adjustment to the new environment.他们应进行调整以适应新环境。Like bats, they send out sound waves an...