圆基

A neat solution of the quadrature problem can be achieved with the spiral of Archimedes.

用阿基米德螺线能成功地解决化圆为方的问题，方法很简单。

Japan's main Samsung, Japan Bando, Germany than Austria, the United States Gates, Italy SAMPLA, Netherlands DERCO, varieties are: conveyor belt, using Teflon oven conveyor belt, V-belt, timing belts, speed zone, on-chip baseband, with a round steel and steel deduction and the deduction of such mechanical and electrical spare parts, the operating company, I really merged with the world.

主要有日本三星、日本阪东、德国奥比、美国盖茨、意大利SAMPLA、荷兰DERCO等，品种有：输送带、烘箱用铁氟龙输送带、三角带、同步带、变速带、片基带、圆带以及钢扣和钢扣机之类机电零配件，我公司的经营真正做到了与世界并轨。

The dissertation puts forward the base circle's pressure angle method to calculate the instantaneous meshing efficiency of SCM, analyzes the factors affecting instantaneous meshing efficiency and further improves the design theory of SCM.

在对空间凸轮机构进行受力分析的基础上，提出了计算空间凸轮机构瞬时啮合效率的基圆压力角法，分析了影响瞬时啮合效率的因素，进一步完善了空间凸轮机构的设计理论。

In an embodiment of the present invention, a cam may be provided with a main exhaust lobe, a partial bleeder lobe and an inner base circle portion between the two lobes.

在本发明的实施例中，凸轮可具有主排出凸角、部分排放凸角和在两个凸角之间的内基圆部。

The diffraction theory of Kirchhoff is applied to the four-pinhole aperture diffraction screens, the intensity, the zero-contour of the real and imaginary parts of complex amplitude and the phase distribution in deep Fresnel diffraction region are simulated, and it is found that the bright spots in interference field show central symmetry distribution. When the observation plane close to the diffraction screen, the zero-value points of light intensity can form line segment, on which the eccentricities of the light intensity isoline are close or equal to 1, the intensity changes very fast on both sides of the zero-line of light intensity.

利用基尔霍夫衍射理论计算了四圆孔径衍射屏在菲涅尔深区形成的的干涉光场的强度、零值线和相位的分布，发现干涉光场亮斑关于中心呈对称分布，在距离衍射屏较近的观察面上，光强值为的零点组成光强零值线段，该线段上光强等值线的离心率都接近或等于1，其两侧的光强值变化非常剧烈。

The circular disk is somewhat easier to machine and to load than the tensile 3 specimen; moreover, if required, several calibration points can be obtained from a single load.

基於试片加工与负载的方便性，而且可以只从单一负载就可取得多点资料，所以圆盘试片受上下压力实验法是比较被推荐使用的方法。

Internal Grinder: ordinary type-based series, mainly used for grinding cylindrical and conical inner surface of the grinder.

2内圆磨床：是普通型的基型系列，主要用于磨削圆柱形和圆锥形内表面的磨床。

Cylindrical Grinder: ordinary type-based series, mainly used for grinding cylindrical and conical outer surface of the grinder.

1外圆磨床：是普通型的基型系列，主要用于磨削圆柱形和圆锥形外表面的磨床。

During the incubation of purified α-synuclein with fructose or glucose, it was observed that the protein intrinsic fluorescence at 308 nm decreased while the fluorescence of glycated derivant at 447 nm increased.

将纯化后的α-synuclein分别与果糖和葡萄糖孵育，通过内源荧光、非酶糖基化衍生物特征荧光、圆二色光谱以及电子显微镜等技术进行检测发现：α-synuclein 与还原糖共同孵育后，308 nm内源荧光强度明显降低，同时在447 nm产生一个非酶糖基化衍生物特征荧光。

Firstly, a new design method of cam profile has been developed by using finite terms of Fourier Series in the cycle of cam angle as the basic equation of cam profile, so the difficulty of base circle wave existing in the method of resonant cam design can be eliminated. On the other hand, the method proceeds from the acceleration of cam profile, which makes the acceleration not only smooth and continuous, but also easy to be controlled, and the cam profile with good performance can easily be acquired.

此方法用以凸轮包角为周期的富立叶级数有限项作为凸轮型线的基函数，可以免去谐波凸轮设计时控制基圆波动的困难；此方法又是从凸轮型线的加速度曲线入手进行设计，使型线加速度不但光滑、连续，而且形状容易控制，便于设计出动力性能优良的凸轮型线。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。