preparatory school是什么意思

用法例句

The Rational Analysize of Constitutionalism"Preparation" in the Late of Qing Dynasty;

清末“预备”立宪程序合理性探析

Influence of Timing Preparation on Coronal Microleakage of Cemented Cast Posts and Cores;

不同间隔时间预备对桩核微渗漏的影响

It’s not only the starting point of behavior, but also the important sign differs crimes preparation from unrealized crimes.

“着手”是刑法中的一个重要概念,其本身不仅是实行行为的起点,而且还是区分犯罪预备与未遂的重要标志。

Clinical observation between ProTaper nickel-titanium hand-file and stainless steel H file in root canal preparation;

手用ProTaper镍钛锉与不锈钢H锉根管预备的临床疗效

Comparison of stress distributions in dental roots after root canal preparation with 3 different instruments;

三种根管预备方法对根部牙体组织应力分布影响的三维有限元分析

A comparison of clinical effects of ProFile flexible nickel titanium file with that of ISO standard file in root canal preparation;

ProFile机动镍钛锉与ISO标准锉根管预备的临床效果比较