biconvex

This paper describes a flow visualization experiment over the leeside of a slender tapered wing with a leading edge sweepback angle of 65 ° and a biconvex section.

给出了前缘后掠65°、双弧形剖面的细长梯形翼背风面流动显示结果。

of biconcave of computer clavier biconvex sheltered evil people and practices the most easily, cleanness rises special inconvenience.

电脑键盘凸凸凹凹的最轻易藏污纳垢了，清洁起来非常不方便。

Studying the rule of image construction for biconvex lens by using the method of vision difference

用视差法研究凸透镜的成象规律

The rule of adaxial image formation is studied, of the transmission light and reflected light through the two optical surfaces L_1 and L_2 of the biconvex lens.

研究了经双凸透镜两个光具面L1和L2的透射光线和反射光线的近轴成像规律，以此说明其像群的形成。

the second lens group (g2) is provided with at least one biconvex lens group (l21).

第2透镜组（G2），至少具有1片双凸形状的透镜组（L21）。

At the limit condition, the ordinary formula of self imaging on plane grating can be obtained. STUDYING THE RULE OF IMAGE CONSTRUCTION FOR BICONVEX LENS BY USING THE METHOD OF VISION DIFFERENCE

它与在球面波照射下平面光栅的自成象规律类似。用视差法研究凸透镜的成象规律

This paper, in detail, introduced how to study the rule of image construction for biconvex lens by using the method of vision difference.

本文详细地介绍了如何运用视差现象研究凸透镜的成象规律。

Brush furnisher Application of Biconvex Cam Sine Acceleration Framework in Metallic Roller Printing Equipment

毛刷给浆滚筒（滚筒印花机的给浆装置）双凸凸轮正弦加速度机构在金属筒体印花设备上的应用