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1.Under internal pressure, equilateral frustum shell tends to wrinkle at the equator, and the circular degree of the obtained vessel is poor.
摘要等边双圆锥台壳体在内压的作用下，赤道环焊缝处易产生失稳起皱，且胀形后所得容器圆度较差。收藏指正
2.Approaches of representing circular arcs with NURBS of degree two
基于NURBS的圆弧曲线表示方法收藏指正
3.This tester is suitable to measure accuracies of pitch deviation with inside and outside straight helical circular gear among seventh degree. Easy to operate and maintenance.
适用于检查7级或低于7级精度的内外齿合直齿与斜齿圆柱齿轮的周节偏差。操作简便，易于维修，可供各工厂计量室及车间使用。收藏指正
4.A shock wave produced by the expanding debris is outlined by the strikingly sharp blue circular arcs of twenty million degree Celsius gas seen on the outer rim.
外缘醒目锐利的蓝色圆弧勾勒出了膨胀的碎片做产生的激波，圆弧是温度达到2000万摄氏度的气体。收藏指正
5.COMPLEX BEZIER CURVES OF DEGREE TWO ON UNIT CIRCULAR ARCS
单位圆弧上复二次Bézier曲线收藏指正
6.Just under 3 feet in diameter and weighing 45 pounds, the black circular device emits an intense 15- to 30-degree-wide acoustic beam -- a high-pitched shrill tone similar to a smoke detector alarm -- that can easily cause permanent auditory damage at close range.
仅仅在3尺之下在直径中的秤重45磅,黑色的圆形装置发出强烈的15-达到30程度-宽的听觉光线--一尖锐的尖锐声音明暗相似的对烟发现者警报--那能容易地因素烫发听众席损害在结束范围。收藏指正
7.Abstract: In view of the application of calculation formulae on clamping force of circular eccentric,this paper presents classification by self-locking degree and corresponding calculation of clamping force.On the basis of analyzing an comparing A-type and B-type eccentrics,it is concluded that the former has an advantage over the latter.And then the reasonableness of the standard eccentricity and tolerances is discussed and some revisions are suggested.This offers a dependable theoretical foundaation for design and application of the device.
文摘:针对圆偏心夹紧机构夹紧力计算公式的应用问题，提出了按圆偏心自锁程度不同的分类方式及其相应的夹紧力计算方法；分析比较了A、B两类偏心的夹紧特性，得出了前者优于后者的正确结论；讨论了标准偏心轮的偏心距及其公差取值的合理性问题，并提出了相应的修改建议，为正确设计和应用该机构提供了可靠的理论依据。收藏指正
8.In view of the application of calculation formulae on clamping force of circular eccentric,this paper presents classification by self-locking degree and corresponding calculation of clamping force.On the basis of analyzing an comparing A-type and B-type eccentrics,it is concluded that the former has an advantage over the latter.And then the reasonableness of the standard eccentricity and tolerances is discussed and some revisions are suggested.This offers a dependable theoretical foundaation for design and application of the device.
针对圆偏心夹紧机构夹紧力计算公式的应用问题，提出了按圆偏心自锁程度不同的分类方式及其相应的夹紧力计算方法；分析比较了A、B两类偏心的夹紧特性，得出了前者优于后者的正确结论；讨论了标准偏心轮的偏心距及其公差取值的合理性问题，并提出了相应的修改建议，为正确设计和应用该机构提供了可靠的理论依据。收藏指正
9.It is shown that the bias caused by the circular assumption is up to about 1 mbar in the pressure and up to about one degree Celsius in the temperature.
1）给出GPS无线电掩星反演地球大气参数过程中计算大气折射角的解析表达式。收藏指正
10.The multifinger logging tool is an important tool acquiring casing deformation degree of water-oil well, The data that logging tool acquiring is interpreted by optimization method,circular center,maximum diameter and efficient diameter of approximate eccentric circle for deformation section are given.It provides scientific basis for interpreting casing deformation.
多臂井径测井仪是获得油水井套管变形程度的重要工具,利用最优化方法对井径仪所获得的数据进行解释,给出了套管变形截面的近似偏心圆的圆心、最大通径和有效通经.这为进一步解释套管变形提供了科学的依据.收藏指正
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