查询词典 cone

An accurate measurement scheme is proposed for testing the error of cone prisms with Hartmann wavefront sensor. The measurement theory was discussed, the reconstruction of the wavefront reflected from a cone prism was studied, and the relation between the wavefront characteristics and the errors of a cone prism was given.

因此，提出一种用哈特曼波前传感器全面检测角锥棱镜角度误差和面形误差的技术方案，从理论上分析了哈特曼法的测量原理，深入研究了光经过角锥棱镜后的波面重建，给出了波面特征与角锥棱镜误差参量之间的关系。

We obtain the closedness and semicontinuity of cone efficient solution sets and cone weakly efficient solution sets for multiobjective programming problem under constraint cone perturbations.

得到了约束锥扰动多目标规划问题的锥有效解集和锥弱有效解集的闭性和半连续性。

Meanwhile, we have gotten stability for the subdifferential of cone efficient point sets and cone weakly efficient point sets of multiobjective programming with respect to perturbation of cone respectively.

对于局部凸拓扑向量空间的多目标规划问题，本文研究并得到当确定空间序的控制锥受扰动，它们的锥有效点集和锥弱有效点集分别在锥次微分和锥弱次微分意义下的稳定性结果。

Cone of tangent; tangent cone; tangent-directrixed cone

选取要包括在拔模线中或从中排除的参照曲线段。。。。

Typical volcanic cone in shape, said the volcanic cone, cone with crater, volcanic crater under the deep crustal magma channel and connected.

典型的火山外形呈圆锥形，称火山锥，锥顶有火山口，火山口下有火山通道与地壳深处岩浆相连。

Cone and seed development was observed from 1993 to 1998 in wind-pollinated Keteleeria davidlana Beissner var. formosana Hayata trees grown at Taipei Botanical Garden. Seed efficiencies per cone (percent filled seed per cone divided by seed potential) were persistently less than 1% during the investigation period.

从1993年至1998年间观察生长在台北植物园的台湾油杉天然受粉毬果与种子的发育，结果发现有效种子率（每毬果内饱满种子数占潜力种子数的百分率），每年均不到l%。

Using the nature of endocone refraction and external cone refraction and the corresponding position relation on the light wave plane, the expressions of the cone-apex angles of endocone refraction and external cone refraction are deduced.

以此为基础，借助内锥折射和外锥折射的性质及对应光波面上的位置关系，推导了内锥折射锥顶角和外锥折射锥项角的表达式。

The new bit ′ s cone and bearing are much larger than those of the three cone bit with the same size,therefore the new bit can bear a greater WOB,thus,the life of the bearing and cone can be prolonged and then the penetration rate can be raised and the length of bit run prolonged.

与相同钻头尺寸的三牙轮钻头相比，该新型钻头的牙轮尺寸和轴承尺寸要大得多，因此，它可以承受较大的钻压，从而可以提高轴承和牙轮的使用寿命，进而提高机械钻速和钻头的使用寿命。

Models have been developed for predicting sound seeds and total seeds per cone by means of the cone cuttingfor Chinese fir. Number and quality of seeds per cone have been analysed and estimated.

本文利用球果切开法建立了预测杉木全果饱满种子数和种子总数的预测模型，同时对杉木球果中种子的产量和质量作了估测和分析。

The test results showed that when the cycle water flow was 65m^3/h and the oxygen flow was 1, 2,……, 10L/min, the relationship between the dissolved oxygen and oxygen flow in the water was y=0.1009χ^2+0.0594χ+5.9588 (r=0.9927). According to the mass balance principle, the maximum oxygen utilization rate of oxygen cone was calculated at 84.56%. Under the condition of the maximum oxygen utilization rate of oxygen cone, according to the rate of Nile tilapia oxygen consumption, the number of oxygen cone was projected in industrialized fish farming system. It provided the basis for oxygen supply system design in industrialized fish farming system.

结果表明，在循环水流量为65 立方公尺/h，水温24.5℃，氧气流量为0， 1， 2，……，10 L/min的条件下，溶氧与氧气流量回归方程为y=0.1009χ^2+0.059 4χ+5.958 8(r=0.9927)；根据物料平衡原理，推算出氧气锥的最大氧气利用率为84.56%；在最大氧气利用率的条件下，依照尼罗罗非鱼的耗氧率计算模式，推算出工厂化养鱼系统需配置氧气锥的台数。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。