推导了进入双点啮合区的法面啮合角公式，采取了独特的剃齿刀修形方式，从设计和修形上下功夫杜绝剃齿中凹的产生。
And the normal engagement angle of approaching double-point tooth area is deduced. The special dressing method of shaving cutter has been adopted.
系统给出了四种防止剃齿中凹的方法，用户可根据不同的生产条件进行选择，对每种方法的应用，系统软件都给予了指导。
Users can select from these methods according to their production condition. There is instruction for applying each method in the expert system.
弯月面容器中之静止液体的弯曲上表面，如果液体浸润了容器壁，那么弯曲面呈凹状。
The curved upper surface of a nonturbulent liquid in a container that is concave if the liquid wets the container walls.
弯月面容器中之静止液体的弯曲上表面，如果液体浸润了容器壁，那么弯曲面呈凹状；如果没有，就呈凸状。
The curved upper surface of a nonturbulent liquid in a container that is concave if the liquid wets the container walls and convex if it does not.
它有一个有趣的凹唯一去与高家庭中的其他推杆脚趾的设计。
It has an interesting concave sole to go with the high-toe design of the other putters in the family.
优化了模具结构，同时也介绍了在冲压过程中凸、凹模易开裂采取的措施和方法。
Also introduced the measure of prevent the convex and concave die cracking in course of pressing.
凹模在使用过程中，由于交变载荷的作用，使碳化物的棱角处应力集中出现裂纹，最终导致凹模开裂。
The crack appears at the edge angle due to stress concentration caused by alternating load, which finally leads to the fissuring of die plate.
以聚氨酯橡胶代替通常钢模中的凹模或凸模是比较有效的方法之一。
It's one of best methods to use polyurethane rubber rather than usual cavity or core in steel die.
因此，在整个模具设计过程中，侧凹特征的识别必须在其他一切设计活动之前完成。
So, all the undercut features in a mold should be recognized first before the other design activities can be carried out.
中颅凹底巨大海绵状血管瘤的诊断和治疗。
Diagnosis and Treatment for the Giant Cavernous Hemangiomas in the Middle Fossa.
冲裁侧刃是端子模具中的重要工序，其冲裁形状和凸、凹模结构对端子生产质量影响很大。
Punching side blade is an important procedure of terminals die, its punching shape, concave die and convex die structure greatly impact the terminals on manufacture quality.
反曲线饰纵断面部分为凹线，部分为凸形的檐口的线脚，尤用在古典建筑中。
A molding for a cornice, having a partly concave and partly convex curve in profile, used especially in classical architecture.
贾平凹作品中的神秘色彩和幽默艺术，增强了作品的可读性、象征性，使作品的主题思想更加博大精深。
The mysterious color and humorous art in Jia Pingwas works enhances the readability symbolic of his works and makes it more significant.
曲面交线、曲面内凹区域及曲面中浅平面的加工是曲面加工的难点。
Surface intersections, concaves and shallow planes of the curved surface are difficult to machine.
然而用标准渐开线齿形剃齿刀剃齿后，在工件齿形节点附近会出现不同程度的“中凹”现象。
However, after shaved by shaving cutter with true involute profiles, there are the "mid-concave" phenomena on the pitch points of shaved gear tooth profiles inevitably.
在光记录技术中，由记录激光束在光盘表面上烧蚀的一个微小凹陷区。记录信息包含在凹区和凸区中。
In optical recording, a microscopic depression made on the disk surface by the recording laser beam. Recorded information is contained in the pits and the Spaces between pits-lands.
在工作过程中，冲头与凹模切口的半径定位，确保形成所需的圆形，而不至于在圆边产生“缺口”。
The radius of the punch and die cutting edges is laid out to produce the desired circular shape without nicking into the circle as the work proceeds.
曲面交线、曲面内凹区域及曲面中浅平面的加工是曲面加工中的难点。
The line of intersection, inward concave and shallow area of curved surface are the difficult points in curved surface machining.
目的探讨不同的骨骼形态中关节凹的位置情况。
Objective To analysis the position of glenoid fossa in subjects with different skeletal features.
首先，我们对几何活动轮廊模型中吸引力场进行正则化，扩大目标轮廊边缘对的轮廊曲线的吸引力范围，增加轮廊曲线搜寻凹轮廊的能力。
First, we regularize the attraction force field in the geometric active contour model to extend the capture range of the object boundaries, and improve the ability of convergence to the concavities.
实践证明：设计出的剃齿刀寿命长，加工质量好，对中凹现象有明显改善。
Facts have proved that the designed shaving cutter is long-lived, good in machining quality, and effective on correcting centre-concave.
实例测试表明，该侧凹特征识别方法可以有效地识别注塑产品中的侧凹特征，提高侧凹特征的识别效率。
The case study shows that the proposed method is available in recognizing the undercut features and improves the efficiency in undercut feature recognition.
本文分析了人机结合对CAD系统设计的影响，论述了HPC系统凹模、凸模和挡料装置设计模块中的人机交互作用。
The influences of man-machine combination on the design of CAD system, the man-machine interaction in the die, the punch and the stock stop design modules of HPC system are discussed.
研究与凸函数对应的凹函数及其性质，并指出了凹函数在最优化中的应用。
In this paper, concave function and its properties are discussed. And concave function's application in optimization are shown as well.
蔡凹锑矿位于陕豫锑矿带的西段，为矿带中典型的锑矿床。 其控矿岩系主要为秦岭群中部雁岭沟组石墨大理岩。
The Caiwa middle - sized antimony deposit is located on the western Shanxi-Henan antimony ore belt, The hosting rocks are Yanlinggou Formation graphite marble of the Qinling Group.
证明了递减反向失效率(DRHR)性质关于卷积运算封闭，同时证明了该性质在累积发生率是凹的非齐次泊松冲击模型中也封闭。
It is also shown that the DRHR property can be preserved under non-homogeneous Poisson shock model with increasing concave cumulative rate of occurrence.
本文针对高速冲裁过程中废料回带产生的原因及其危害，介绍了用电火花强化改变凹模结构来防止废料回带的方法。
It presents a method how to make use of electrospark hardening and change the structure of die to prevent up run of scraps.
实验比较了SESAM器件在平凹稳定腔和平凸非稳腔激光器中实现被动锁模的差异，并给出理论解释。
The differences of the passive mode-locking by the SESAM in the plane-concave stable resonator and the plane-convex unstable resonator lasers were experimentally compared and reasonably explained.
实验比较了SESAM器件在平凹稳定腔和平凸非稳腔激光器中实现被动锁模的差异，并给出理论解释。
The differences of the passive mode-locking by the SESAM in the plane-concave stable resonator and the plane-convex unstable resonator lasers were experimentally compared and reasonably explained.
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