concave ['kɔnkeiv]

concave的基本解释

adj.

凹的

n.

凹, 凹面

与concave相关的网络例句 [注：此内容来源于网络，仅供参考]

Two He-Ne lasers have been designed in experiment,one with simplest 2D axisymmetric folded-combined cavity that are composed of a concave-plano-concave folded cavity and a plano-concave cavity , and other with simplest 3D axisymmetric folded-combined cavity that are composed of two concave-plano-concave folded cavities and a plano-concave cavity.

本文实验设计了由一个凹-平-凹折迭腔与一个平凹腔组合的二维轴对称折迭-组合腔型He-Ne激光器及由两个凹-平-凹折迭腔与一个平凹腔组合的最简单立体轴对称折迭-组合腔型He-Ne激光器。

The invention relates to a light pumping system for all-solid laser, particularly a light pumping system for disc type laser, comprising heat sink, laser crystal, optical fiber, plane reflector, a first concave reflector, a second concave reflector, and a third concave reflector, and adopting a structure that the plane reflector is between the optical fiber and the first concave reflector, to make the LD and laser cavity on the same side of the laser crystal, thus reducing the packaged size of the laser; the invention fixes the plane reflector on the heat sink to reduce the inclined incident angle of the pumped light beam, thus the pumped light can be fully absorbed, and the invention solves the problem of pumping efficiency and largely reduces the bulk of the laser, beneficial to the all curing of the product and ensuring the cooling requirement of the laser crystal.

本发明涉及全固体激光器的光泵浦系统，特别是一种盘式激光器的光泵浦系统。包括热沉1、激光晶体2、光纤3、平面反射镜4、第一凹面反射镜5、第二凹面反射镜6、第三凹面反射镜7，本发明采用平面反射镜位于光纤与第一凹面反射镜之间的结构，使LD和激光腔位于本发明激光晶体的同一侧，从而减小了激光器的封装尺寸；本发明将平面反射镜固定在热沉上，使泵浦光束斜入射角减小，泵浦光则能充分吸收，为此，本发明解决背景技术采用第一凹面反射镜使泵浦光束斜入射角过大引起的像散，泵浦光斑变形引起泵浦效率降低问题，使得本发明可选用大面积半导体制冷器，避免使用水冷，则激光器的体积大大减少，有利于产品的全固化，保证了激光晶体的散热要求。

The clamp device comprises the grip part connected with the clamp part through the linking part, with the clamp part composed of concave part and the first and second arms extended to both sides, the first concave slot horizontally going through the first arm, the second concave slot horizontally through the second arm, a U shape tunnel parallel with the horizontal surface formed by two arms and with the concave part, cylinder hole set inside the top and down side all symmetrical inside the second deep slot, rotary shaft with both ends insertable to the cylinder hole, linking pole component fixed on the rotary shaft, limit component set on the first arm locking the linking pole.

本发明提供一种夹取装置，该装置包括：握持部，夹取部通过连接部与握持部连接；夹取部包括：凹形部，及由其两侧延伸的第一臂和第二臂，构成容置空间；第一凹槽，水平穿设于所述的第一臂，第二凹槽水平穿设于所述的第二臂，分别平行于凹形部及所述两个臂构成的平面，形成U形通道；圆柱形孔，对称设置于第二深槽的上下侧壁内；转动轴，两端可插入所述圆柱形孔中转动；连杆组件，固定于转动轴上；限位件，设置在第一臂上，用于锁定连杆。

与concave相关的网络解释 [注：此内容来源于网络，仅供参考]

concave：凹

此为一般待焊板无铅回焊所常用的有鞍型回焊曲线,各热量差异较小.此 L 型曲线以直线式或稍呈下凹(Concave)为宜,不可出现隆起(Convex)状态,以免板 面过热造成厚板之表层起泡.且此升温线的 2/3 长度处不宜超过 150℃,其余参数同上 29.

concave：凹的

微观经济理论认为,当企业的生产投入集是闭的(closed),单调的(monotonic)且满足自由处置(free disposal)等条件时,如果生产函数关于产量是凹的(concave),那么其对应的成本函数关于产量就是凸的(convex ).

concave：凹形

convex 凸面 向外弯曲.凸面镜是一面镜子,它的反射面是由球或抛物体的外表面 形成的.凸面透镜至少有一面由球的外表面形成.双凸透镜有两个凸面, 故其中心最厚.平凸透镜有一平面和一凸面.凸凹透镜(亦称弯月形透镜) 有一凸面和一凹形(concave)面.

concave：凹透镜

36.(17分)根据探究"凸透镜成像规律"实验,请回答下列问题" (1)以下各图中属于凸透镜(convex lens)的有____,属于凹透镜(concave)的有____(选填序号). (2分) (2)在阳光下测定凸透镜焦距的物理办法是: .(3分) (3)在光具座上做实验时,

concave cutter：凹面铣刀

compass 两角规 | concave cutter 凹面铣刀 | convex cutter 凸形铣刀