The energy band gaps of sputtered Cr 03 are approximately 1 . leV ( AD ) and 1 . 4 eV ( HT ).其中第三种溅射铬-氧薄膜(C_ rO3)的能带间隙约 1.leV ( A-D ) 和1.4eV ( H-T ).Methods: The serum PLA 2 , ALT lev els were detected by Trace titration...
High resolution spaceborne SAR gives new challenge to radiometric calibration.高分辨率星载SAR技术的发展,对辐射定标提出了新的挑战.External calibration is key method used for spaceborne SAR antenna onboard measurement.天线外定标是实现星载SAR天线方向图在轨测试的主要手段...
a saturnine expression on his face脸上露出讥讽之色He had a rather forbidding, saturnine manner.他的举止相当乖戾阴郁，令人望而生畏。The face was saturnine and swarthy, and the sensual lips seemed to be twisted with disdain.他皮肤黝黑, 面带讥讽表情,嘴里叼着烟斗,是个鞑...