这树肚带是两公尺.This tree is 2 meters in girth.培训肚带作出聚网络与PVC内衬整个背部和内围.Training surcingle made of poly web with PVC lining across the back and inside the girth....
She thought it was an absolute scream when I fell off my chair.她认为我从椅子上摔下来是一件极其滑稽可笑的事情。The variation of return rate constant k with different absolute temperature T deviates Arrhenius empiric equation.反应速率常数随绝对温度的变化基本上符合...