Colorimetric determination method for free methionine was established , that is NTB method.首先建立了适用于大量菌种筛选工作的蛋氨酸的测定方法-NTB法.Fig. 5 Variation of furfural calibration curves in aniline acetate colorimetric method.图5醋酸苯胺比色法,糠...
She reached into the wardrobe and extracted another tracksuit.她伸手又从衣橱里取出一件运动服。She wore blue tracksuit bottoms.她穿了一件蓝色田径裤。I changed into a tracksuit.我换上一身运动装。...
The coded signal is received by satellite dish aerials.编码信号由碟形卫星天线接收。Dish aerials are highly directional.碟形卫星天线的定向性非常强。Are the ship's main radio transmitter aerials earthed and radars switched off?液货船上主无线电发射机天线已接地且雷...