另两个为胸腺嘧啶和胞嘧啶, 即称为嘧啶的单环结构.The other two, thymine and cytosine, are single ring structures called pyrimidines.嘌呤为嘧啶取代或嘧啶为嘌呤所取代,叫做颠换.The substitution of a purine for a pyrimidine, or vice versa is a transversion.本文研究氟脲嘧啶(5—...
Green OrTM was an effective drug to treat dentine hypersensitivity.结论:极固宁是治疗牙本质敏感的有效药物.Give local anesthesia . Drill to open a tooth, clean dentine.钻开牙齿, 去除腐坏的牙质.Objective To know the mechanisms of treating dentine hyper...
Continuous hot dip galvanizing line a biggish electrical control project which is complex for control logic.连续热镀锌生产线是较大型的电气控制项目,控制逻辑较为复杂.It was the commune's architect , Phil Hawes , who came galvanizing idea.是这个公社的...
I am still awed by David's courage...戴维的勇敢依然让我敬佩。The audience was awed into silence by her stunning performance.观众席上鸦雀无声,人们对他出色的表演感到惊叹.And like its predecessor , the London Eye and visitors and awed.伦敦眼与那座老式的观光轮一样,让...