汽车冲洗后, 用油鞣革把它擦净.When you've washed the car, wipe it down well with a shammy leather.我在这家皮革加工厂里鞣革。My job is to tan leather in the leather processing company .以工业副产物木素磺酸和焦油酚为主要原料研制出一种新的合成鞣剂.A new syntan product prepar...
激光散斑干涉法是近代光学的一项新技术.Laser speckle interferometry is a new technique in latter - day optics.雨刷槽开关和光学的角制的开关 ( 多功能开关 )WIPER STALK SWITCH AND OPTICAL HORN SWITCH ( MULTI - FUNCTION SWITCH )扫描近场光学显微镜突破了传统远场光学的 衍射 极限,能够获得超高光学分辨...