Asymmetric 1, 3 - dipolar cycloaddition can be strongly catalyzed by chiral oxazaborolidines.手性唑硼烷酮能够催化不对称1, 3偶极加成反应并取得很好的效果.The dipolar layer is consisted of the latent electrostatic image and toner attracted on it.这偶极层...
We use Monte Carlo method to get the relationship between dipolar interaction and magnetoresistance effect.利用蒙特卡罗数值模拟方法分析了该体系中偶极相互作用对系统磁电阻效应的影响.The dipolar layer is consisted of the latent electrostatic image and toner a...
Dave pulled a back muscle and could barely kick the ball.戴夫背部拉伤，几乎没法踢球。There was barely time for the two boys to escape unseen.两个男孩想趁人不备偷偷溜走几乎是来不及的。Mother was of very small stature, barely five feet tall.母亲身材矮小，只有5英尺高。...