Results: The corresponding microscopical characteristics and thin layer spots from the samples can be obtained.结果: 显微鉴别、薄层色谱鉴别可检出样品中相应的显微特征及薄层斑点.Objective : To determination the concentrations of furbenicillin and its me...
杆状体的光敏度大约是心状体的一万倍.The rods are about 10,000 times as sensitive as the cores.对于重要观察来说,我们需要怎样的视敏度?What visual acuity is required for the most important vision tasks?在摄影技术中, 胶片感光乳剂的光敏度.In photography, the light sensitivity ...