Design and application of exposure remoter of mobile X-ray machine;
移動式X線機曝光控制遙控器的設計與應用
A study of exposure feature of focal plane steel shutter;
焦平面鋼片快門曝光特性研究
Well-balanced negative can be obtained by right exposal and development,by which a picture with detailed shadow,rich gradution,and well balanced density can be produced.
正確的曝光和顯影可以得到正常的底片,影紋清晰,層次豐富,密度適中,反差正常,可以制作出滿意的照片。
To explore an ergonomic lighting level in local environment of armored car,subjects are requested to judge the direction of targets under low lighting,after accepting three kinds of compelling exposal,and the reaction time is recorded.
為了研究裝甲車輛內局部環(huán)境照明的視覺工效問題,受試者接受三種強度曝光,而后在低照度水平下判別視標方向,記錄正確判別反應時。
The principle of ion beam lithography technology and its features are described.
論述了離子束曝光技術的原理、特點,分析了其面臨的關鍵技術問題,如掩模技術、離子源技術、圖像對準技術等,并介紹了這些年來國外的一些研究機構及公司在離子束曝光技術上的研究進展及取得的一些新結果。