projecting system

Clinical study on projecting angle and dosage of dental radio vision graphy system

口腔数字成像系统投照剂量及角度的临床研究

A colorimetric study of the oil film light valve black and white image projecting system

油膜光阀黑白投影机中的色度学问题

Objective: To study correct projecting angle and intensity of dental radio vision graphy ( RVG) system X-ray for obtaining high quality digital dental photograph.

目的：探讨口腔数字化成像系统X线的正确投照剂量和角度。

Starting from the vocational talent orientation and the serious situation of social employment, we offer some probings and ponderings on employment conditions talent training mode and course projecting system.

以高职人才定位和目前社会就业形势严峻的态势为出发点，提出了高职生的从业现状、人才培养模式，并在课程体系研究方面作了一些探索和思考。

Results: For the RVG X-ray system the projecting angle was increased, especially for mandibular former teeth, comparing with conventional dental film.

统计确定每个牙位数字化牙片正确的投照角度和投照剂量。结果：与传统牙片比较，数字化牙片投照角度增加，其中以上颌后牙和下颌前牙角度增加较为明显。