下学期咱们会研究二战时期。Next term we'll be looking at the Second World War period.这学期我要认真学英语了.I'm going to get down to studying English this term.每个学生一学期可能要修四五门课程.A student will probably attend four or five courses during...
以 飞点扫描 切削模式为基础,研制小光斑 飞点扫描 准分子激光角膜屈光矫正系统.The small scanning - excimer laser corneal system was developed based on flying - spot scanning model.摘要以飞点扫描切削模式为基础,研制小光斑 飞点扫描 准分子激光角膜屈光矫正系统.The small scanning - spot excimer lase...
The black mater metal plate is called a collector, there.这个黑色金属板叫做吸热器.In metal lubrication two distinct regions are recognized: boundary and hydrodynamic.在金属的润滑作用中存在两个不同区段: 边界和流体区.Getter - ion pumps decrease chamber pres...