A similar system is used to contact the communications satellites that now continually encircle the earth.人们正把同样的系统用来与目前绕地球飞行的通讯卫星保持联系.She was continually adjusting the ventilation system.她不停地调节通风系统。Sarah had been plague...
PNA分子可被生物素和各种荧光团常规标记.The PNA molecules can routinely be labeled with biotin or various fluorophores.方法采用链霉素 抗 生物素蛋白生物素过氧化物酶免疫组织化学染色.Methods Immunohistochemistry was performed by using avidin - biotin peroxidase complex p...
His great arms dangle loosely at his sides, the palms of his hands open.他的一双粗大的胳膊软绵绵地垂在身子两旁, 手张开着.That man is a total phony, he palms himself off as a Ph . d.那家伙是个彻彻底底的冒牌货, 他冒称是个博士.The crossed the border by greasing the ...