亚胺基杂环丙烷季铵盐的阳离子,一定是按协同反应的方式开环的.The aziridinium ions must all be opened by a concerted process.偶氮杂环丙烷是一类重要的 、 环内张力颇大的化合物.The diazirines are interesting , highly strained ring systems.在最佳反应条件下,环丙烷羧酸异丙酯的产率达92%.Under the opti...
Beneath his smart, generous, unflappable exterior lurks massive insecurity.他聪明大度 、 从容镇定的外表下实则潜藏着严重的危机感.The tone is teacherly, unflappable, optimistic ( Benjamin DeMott )这种腔调是教师似的 、 镇定 、 乐观的 ( 本杰明德莫特 )Who in your organiza...
Morphometric analysis thearea of AS lesions , residual luminal area, average and maximal neointima thickness.并用图像分析仪定量测量斑块表面积、动脉残余管腔面积 、 斑块平均厚度及最大厚度.The minimum dry film thickness of coating shall be 100 microns.最低干膜涂层厚度...
这些警官冒了被开除的风险。The officers had run the risk of being dismissed.被无理开除的工人可以要求补偿.Workers who have been unfairly dismissed may claim compensation.他被开除的谣言在系里传开了.Rumors of his dismissal were noised abroad in the department....