We need such expendable supplies as pencils, ink and paper.我们需要象铅笔 、 墨水和纸张这样的消费品.Once our services cease to be useful to them, we're expendable...一旦我们的服务对他们不再有用,我们就可能被抛弃。Terry Crews as Hale Caesar, an African - Amer...
对于四波混频的研究主要是采用简并四波混频和非简并四波混频方法.The main method in searching four - wave mixing adopts DFWM and NDFWM.描述: 惠普安捷伦5364A是一种用于微波混频器检测器.Description: The HP Agilent 5364 A is a used Microwave Mixer Detector.用途: 用于高频放大, 调频 、 射频、混...
Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么.I digress. My tale does not primarily concern itself with the hen.我离题太远了,我所要讲的故事主要不是关于鸡.When writing about aerosol one is continually...