弯曲点

Point bending strength and fracture toughness of AGC at 1450℃ by fast or slow temperature elevation speed, while the three????

低速率升温至1400℃制备的AGC的三点弯曲强度显著低于其他三组的三点弯曲强度。

In order to model complex hair styles, such as curly hairs and wavy hairs, we first construct five types of surfaces and three curves: curved cylinder, curved circular frustum, curved prism, curved edged frustum, curved revolving paraboloid, and curved cylinder helix, curved circular frustum helix and curved revolving paraboloid helix. Then we give the expressions for points and normal vectors on these surfaces, suitable to composition.

为了构造复杂发型，例如卷发发型和波浪发型，我们首先构造了五种曲面和三种曲线：弯曲圆柱面、弯曲圆台面、弯曲棱柱面、弯曲棱台面和弯曲旋转抛物面，以及弯曲圆柱螺线、弯曲圆台螺线和弯曲旋转抛物螺线，并且给出了这些曲线曲面上适合于拼接的点和向量的表示方式。

By means of bending tests of three-point and four-point, complex fracture experiment s were made for cast iron material with crack.

通过3点弯曲和4点弯曲实验方法，对含有裂纹的铸铁材料进行复合型断裂实验研究，测试铸铁材料的应力强度因子、断裂方向角，将实验结果与理论值进行分析、比较，找出两者之间的异同点，得到一些对工程设计及应用具有实际意义的结论。

The invention orginates from the fact that most of the concrete reinforcement loops needed in practice can be divided up into relatively small number of types of loops which are characterized by a predetermined sequence of points of bend with a fixed sense of direction and amount of the angle of bend, in which case the loops of the same type differ from one another only in the lengths of the individual sides of the loops between the points of bend, or from one end of the loop to the first point of bend, and from the other end of the loop to the last point of bend.

问题补充：不要软件翻译的，最好自己翻译，起码通顺的这项发明orginates的是钢筋混凝土的循环需要在实践中最可分为相对的，是由弯曲点的序列特征与预定的方向和角度的数额固定感循环类型的为数甚少的事实弯曲，在这种情况下，同类型的循环，从彼此的不同只是在弯道之间，或从一个循环结束第一点弯曲点的循环个人边长，从另一端循环的最后一点弯曲。

On strength computation,the finite element models of rotating mirror were established according to the real structure of the mirror,and the rotating three-faced beryllium mirror were analysed.Results display that the surface deformation magnitude of the mirror is approximately 0.334 6 μm,and the maximum stress is 0.204 GPa at 600 m/s of edge linear speeed.The regions of maximum stress are on the axial hole and symmetric to symmetrical planes of mirror body,and keep beelines to surfaces.On the modal analysis,the results show that the first and second modals of bending vibration exist around 3.4×105 r/min and 6.6×105 r/min,which appear binate and orthogonal respectively,and another modal belongs to the first torsional vibration that occurs by 5.13×105 r/min.

运用该方法得出转镜镜面变形量、内部应力分布和振动模态参量的定量数值：在边缘线速度600 m/s下，三面体铍转镜的最大变形量为约0.334 6 μm；最大应力0.204 GPa，位于轴孔附近并与镜面距离最短处；两个在互相垂直平面内的一阶弯曲振动模态发生在3.4×105 r/min附近，一阶扭振点位于5.13×105 r/min附近，两个二阶弯曲振动点位于6.6×105 r/min附近。

The mechanical characteristics of the foam filled 3-D spacer fabric composites under flatwise compressive , shear and three point s flexural loads were compared with 3-D spacer fabric composites and foamsandwich composites , and the effect s of pile height and foam density on the mechanical properties were investigated.

将三维间隔连体织物泡沫夹层结构平压、剪切和三点弯曲载荷作用下的力学特性与三维间隔连体织物复合材料、传统泡沫夹层结构复合材料进行了对比分析，在此基础上，考察了芯柱高度、泡沫密度对复合材料平压、剪切、三点弯曲性能的影响。

New Zealand white rabbits (3-4 months old, 3-4 kg weight) were the test animals, and they were divided into three groups proceeding in this study. In group A:One PLLA screw and one commercial screw were implanted in the right tibia. Two PLLA screws were implanted in the left. Furthermore, one PLLA bar was implanted in both right and left tibia respectively with onlay model in group B. Also,one PLLA plate was implanted in the left tibia and one commercial plate in the right respectively with onlay model in group C . Many tests were done on each sample in 1, 4, 8 and 12 weeks which included the observation of tissue response in group A, and the change of three-points bending, weight loss, molecular weight, crystallinity and morphology of fracture surface by scanning electronic microscopyin group B, and the change of three-points bending, weight loss and molecular weight in group C.

所使用实验动物为24只3-4个月大，体重3-4公斤的纽西兰兔，并将所使用材料及动物分为A、B、C三组进行。A组中於实验兔之右胫骨植入两支骨钉，一支为自制骨钉，一支为MacroPore市售骨钉，并钻一孔但不植入骨钉做为控制组；另於实验兔之左胫骨植入两支自制骨钉，另标示一区不钻孔不植入骨钉做为控制组。B组采用onlay1 模式於实验兔之左右胫骨各植入一自制长型片。C组也采用onlay模式於实验兔之左胫骨植入一自制骨板，於右胫骨植入一市售骨板，各於不同时间点( 1， 4及12周)将A及C组，而於( 1，4，8及12周)将B组内的植入物取出进行各种测试，包括A组的组织切片观察及B组的三点弯曲变化、质量损失、分子量变化、结晶度变化及扫描式电子显微镜观察断面型态改变及C组的三点弯曲变化、质量损失、分子量变化。

The boot upper flexed enough at the pivot point, thanks to the softer glove leather flex point.

鞋面足够柔软，多亏了更柔软的手套皮革的弯曲点。

To test a shoe's flex point, hold it firmly around the heel in one hand and press the palm of your other hand against the sole at the toe end.

要测试一只鞋的弯曲点，用一只手抵住鞋跟，另一只手掌挤压鞋底的脚趾部分。

But this may move the shoe's flex point toward the middle of the shoe, near your arch, rather than at the ball of the foot, where your foot naturally bends.

但这样可能会使鞋的弯曲点移到鞋的中部，接近足弓的位置，而不是跖球部（就是大脚趾关节的底部位置），它是你的脚自然弯曲的地方。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。