Objective To study the shape and location of root canal orifice in maxillary first permanent molar and provide a morphological basis for locating canal orifice in endodontic therapy.

目的研究上颌第一磨牙根管口形态和位置关系，为根管治疗时寻找根管口提供解剖学依据。

youdao

The project root defaults to the location of your current workspace, which is normally best.

默认的项目根目录是你当前工作空间所在位置，这一般是最合适的。

youdao

One important location is OCAPROOT, which is the root of the OCAP implementation source code.

一个重要的位置就是OCAPROOT，它是OCAP实现源代码的根。

youdao

An open G chord is technically third position given its location of the root note, but in Rock Band 3, that particular variant displays a "2" that falls on the A string.

ENGADGET: Rock Band 3 Pro guitar preview: the guitarist vs. the guitar hero