现就磁极的概念作出一些说明.A few remarks are about the concept of magnetic poles.而磁极的防护屏何时将失效也同样是不清楚.Nor is it clear how long its protective shield will be down....
Since 1979 China has collected 24.7 billion yuan in pollutant discharge fees.1979年以来,全国共征收排污费247亿元.Knowledge of any given exposure to air pollutant mixtures is largely inadequate.关于任何特定的暴露于空气污染混合物中的知识,都是极为欠缺的.We will dis...
他擦干净刀子,放入鞘内.He wiped the knife and put it back in the sheath.他擦乾净刀子,放入鞘内.He wipes the knife and put it back in the sheath.如果本周一乌鲁木齐曾经有过不安宁的锋刃, 那么这刀刃已经在沉默中入鞘了.If Urumqi had an edge of unrest on this Monday, it was sheathe...