I have recently been suffering from pain and numbness in my hands.我近来双手一直疼痛麻木。First he had been numb. Then the numbness gave way to anger.起初他只是麻木，接着转为了愤怒。Many men become more aware of emotional numbness in their 40s.很多男性...
提出了一种非线性自适应最优励磁控制器.The paper presents a novel nonlinear adaptive optimal excitation controller.补偿器的输出信号作用在本地发电机励磁系统.The compensator is added in excitation system of the generator.交流励磁是一种好解法对这个问题.AC excitation is a good s...
这就是所谓的催化裂化.It is known as catalytic cracking.裂化是使较重的低挥发性的碳氢化合物分裂成较小分子的化学分裂.Cracking involves the chemical breakdown of higher, less volatile hydrocarbons into smaller molecules.FCC(流化催化裂化 ) 是炼厂生产汽油的主要方法之一.The Fluid Catal...