negative paper是什么意思

网络释义

用法例句

exploration,photography etc,thus giving a free space to aerospace photography reconnaissancc satellites which have been developing rapidly and successfully.

现代国际公约规定,一国的领空限制在80—110千米以下,在此以上像公海一样属于公空,可以自由飞行,因此容许别国飞行物,包括人造卫星,进行各种正常活动,如:探测,照相等等。

This article summarizes the methods of and the author s views on how to use the tech- nique of vertical reflective photography in the teaching of experiments.

利用定向反射镜进行垂直定向反射照相，是近年来出现的照相新技术。

Prediction for bust girth using regression analysis from photographic and anthropometric data;

照相测量中胸围拟合的回归分析

Industrialize Preparation and Process control of Silver Nitrate in Photographical Use;

照相用硝酸银的工业制备及过程控制

The image acquisition system of SEM was designed based on the PCI bus to control the scanning generator, the image acquisition, data communication and the photograph system.

图像采集系统是扫描电镜的一个重要组成部分 ,用于控制扫描电镜的扫描电源 ,视频图像采集、数字化与显示 ,电镜主控计算机与底层微机板的通讯和电镜照相。

Design of a photographic objective using cubic phase plate;

含三次位相元件照相物镜的设计