To establish coefficient multiplying ratio spectrophotometry for determination of pyramidon andcaffeinein naoning tablet .

建立脑宁片中氨基比林和咖啡因的系数倍率测定法。

Research of the influences of Foam Expansion Ratio (FER) and the stability of foam to the cutterhead torque.

通验结果的分析,得出气泡稳定性及发泡倍率刀盘扭矩的影响规律。

Dunlop photographed this belted kingfisher near his home. The real estate appraiser used a 600mm lens and 1.4x teleconverter.

邓普，房地产评估师，用600毫米镜头和1.4倍望远倍率镜拍摄了这只白颈蓝翠鸟。