die cavity

On Correction of Fixed Tone in Reading Aloud;

论朗读中固定腔调的矫正

Effect of potassium on surface adsorption and interlayer fixation of ammonium in vermiculite;

在K+ 、NH+ 4不同施用顺序的情况下研究了蛭石对NH+ 4的晶层固定 ,证实了K+ 的存在对NH+ 4的矿物晶层固定不具有影响。