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...
The electronic addressed liquid crystal display forms different diffractive optical elements.该电寻址液晶显示器可形成不同的衍射光学元件.The exchange of prisoners of war was one of the key elements of the UN's peace plan.交换战俘是联合国和平计划的一个重...