We therefore write the formal mechanism in equations ( 47 a ), ( 47 b ) and ( 47 c ) in which ds is a donor additive.因此,我们把正式的反应历程定成方程式 ( 47a ), ( 47b ) 和 ( 47c ),式中ds是 给电子添加剂.P 300 PL was negatively correlated with the ...
一名办事员会感到如此受人忽视,令人觉得不可思议。It was strange, how invisible a clerk could feel.他在一家银行当办事员.He serves as a clerk in a bank.有个神态安适的办事员在当班,在手动打字机上啪嗒啪嗒地打着字。There was a comfortable-looking clerk on duty, tapping away on a manual typ...
The source of electrons in an electron microscope is a heated filament.电子显微镜中的电子源,是一加热的灯丝.Characterzation: high quality quartz bulb, biplanar filament which enables increased illumination, uniform color temperature and l...
He delivered his words in slow, measured cadences.他讲话缓慢而抑扬顿挫、把握有度。He's also a devout Catholic with a missionary fervor, and his conversation glistens with Biblical cadences.他也是个虔诚的天主教徒,有传教士般的使命感, 言谈充满圣经警句般美妙的韵律.He r...