它的发病与黄疸型肝炎的前驱期相似.The onset of this disease may resemble the prodromal period of icteric hepatitis.采用硝酸铁、硝酸锌、柠檬酸制备前驱体,在不同加热温度与速率下制备锌铁氧体.The citrate sol - gel synthesis method has been used to prepare zinc ferrite.以硫酸钛作为前驱...
The invalidity of one clause does not invalidate the agreement.本协议任何一款无效不影响整个协议的效力.The Security setting to invalidate version one signatures is set.已设置使版本签名无效的安全设置.Any form of physical activity will invalidate the result...
Fast enough, NASA says, to prevent widespread contamination and save lives.NASA认为只有足够快才能预防炭疽的遍布污染和拯救生命.We must ensure our children against contamination by bad ideas.我们必须保护我们的儿童不受坏思想的侵蚀.The contamination of wild barm wou...