查询词典 entrance

entrance pupil：入瞳

系统孔径,常指入瞳 (entrance pupil) 或孔径光栏 (aperture stop),它限制可从已定义视场入射光学系统的光线. 光学表面可以是折射、反射或绕射. 透镜可以是由均匀或渐变折射率材质所制成.

entrance pupil：前透光孔

enlarging timer 放相定时器 | entrance pupil 前透光孔 | epidiascope 两用投影机 (透明片或实物)

Entrance Pupil Diameter：入瞳直径

Aperture Type 光圈类型 | Entrance Pupil Diameter 入瞳直径 | Object Cone Angle 物方锥形角

a prevailing wind of taking part in the postgraduate entrance exams：考研热

无氟冰箱 freon-free refrigerator | 考研热 a prevailing wind of taking part in the postgraduate entrance exams | 恶性循环 vicious cycle

Square-edged Entrance：方角入口

Spur dam 丁坝 | Square-edged Entrance 方角入口 | Stability 稳定性

sharp-cornered entrance：锐角入口

sharp-bend ==> 锐弯头,突跃弯头 | sharp-cornered entrance ==> 锐角入口 | sharp-cornered well ==> 锐角势阱

service entrance：进线口

service digit ==> 服务位 | service entrance ==> 进线口 | service factor ==> 使用系数

service entrance：引入线(电)

"服务图","service chart" | "引入线(电)","service entrance" | "图组","set of drawing"

service entrance：进户线

紧配合tight fit | 进户线service entrance | 进口边缘损失lip loss

service entrance conductor：进户线

service drop 接线盒 | service entrance conductor 进户线 | service life 使用期限;供气时间

The Shop Around the Corner：街角商店

上错天堂投错胎Heaven Can Wait (1943) | 街角商店The Shop Around the Corner (1940) | 妮诺奇嘉Ninotchka (1939)

neigher nor gate：既非又不闸

"邻区最佳控制","neighboring optimal control" | "既非又不闸","neigher nor gate" | "内利亚克编译程式","NELIAC; naval electronics laboratory international algebraic complier"