根据概率理论, 将作用于钻井井壁上的荷载分类模化.According to probabilistic theory, load on drilling shaft lining is respectively modelized.以氮氢混合气体为模化介质,研究了单孔冲击射流传热过程.An experimental investigation on single circular impingement heat transfer by...
Dingxi Prefecture is located in the foothill of the Loess Plateau climate is arid or semi - arid.位于黄土高原丘陵沟壑干旱半干旱区的甘肃省定西地区,面临生态恶劣和经济贫困的双重危机.The scent of pine and the sound of crickets floated down from the foothill Appala...
Their arrival caused mayhem as crowds of refugees rushed towards them.他们到达后大批难民一拥而上，引起一片混乱。It was a period of collective insanity, of legalized murder and mayhem.那是个集体丧失理智、谋杀与暴力合法化的时期。...the economic mayhem that this cou...
Pseudomonas aeruginosa, Escherichia coli , Klebsiella pneumoniae and fungi were the main pathogens.铜绿假单胞菌, 大肠埃希菌, 克雷伯菌属及真菌是主要致病菌.Process control of recombinant Escherichia fed - batch culture should be optimized.优化重组大肠杆菌...