It intercepts a portion of the light impinging on the photocell.它遮住一部分照射在光电管上的光.Sight is made possible by rays of light impinging on the retina.由于光线射到视网膜上,眼睛才看得见.A wavefront at high radio frequencies or optical frequenci...
"Wait a damn minute," Mindy spat. "Nobody said anything about staying overnight."“该死的，等一下”，明迪愤愤地说道，“谁也没说过要过夜。”Nobody else believed that they had tried to rub out the pope.其他人都不相信他们试图杀死教皇。Drew made some remarks to nobody ...
Benzyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸氢钾为催化剂,丁酸和苄醇为原料合成丁酸苄酯.Isoamyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸氢钾为催化剂,正丁酸和异戊醇为原料合成了正丁酸异戊酯.Isoamyl bu...