查询词典 cuboid

Second, the afterbody of the cuboid is modified step by step in 9 models to model flow wake at rear end and...

文中得出了客车外围流场的速度矢量图和压力分布图以及六个气动力系数，并将最终结果与风洞试验结果进行了比较，结果吻合较好。

It is shown that a "labyrinthic" structure with mass cuboid plateaus and caves is formed on the surface of aluminous sheet.

研究结果表明，表面微细粗糙结构对表面的超疏水性起到了决定性作用，是制备超疏水表面的关键所在。

By the use of a dielectric polarization theory this paper analyzes the field charging states of a ball-shaped and a cuboid shaped particulate placed in an electrical precipitator field.

用电介质极化理论对置于电除尘器电场中的球形粒子、长方体粒子的场荷电情况进行了分析，然后分别导出各自条件下的场荷电方程。

To verify the new approach, an open-ended empty rectangular cavity and cavity loaded with a metal cuboid are analyzed. The numerical results are in agreement with the published data and those obtained by FDTD. Good convergence behavior is observed.

为了验证理论模型的正确性，该文对某一矩形空腔及底部加载金属台阶的腔体进行了分析，计算结果与文献数据以及用时域有限差分法所得结果一致，并具有很好的收敛效果。

The volume of cuboid F is 30 times the volume of cube G.

长方体 F 的体积是正方体 G 的体积的 30 倍。

This is a rotatable cuboid crystal, Can be placed 2 photos.

这是一款可以旋转的长方体水晶，可放置两张照片。

The volume of cuboid V is 4 times the volume of cuboid U.

长方体 V 的体积是长方体 U 的体积的 4 倍。

According to the character of outer shape of modem buses, the numerical calculations are performed from the simplest shape-cuboid by using ANSYS/FLOTRAN software. First, the foreside of the cuboid is modified step by step in 17 models (this is equal to the process of modification to the foreside of a bus).

在本文中，应用ANSYS／FLOFAN软件，根据现代客车外形的特点，从最简单的长方体开始进行数值模拟计算，首先对长方体的前部进行逐步改造(相当于对一个客车头部进行改造的过程)，这一步骤包括了17个模型；然后再对其尾部进行变化，以模拟客车后车体形状对空气阻力系数的影响，该步骤包括9个模型：最后给出两种现代客车的数值模拟结果。

The results showed that, after induced for 4~5 d by dexamethasone, beta-glycerophosphate and ascorbate-2 phosphate, the volume of some cells of the goat MSCs gradually largened and changed their form from spindle/polygon to cuboid/ovoid; With the induce time continuing, the numbers of the cuboid/ovoid cells continuous increased; At 15th day, there were many cuboid cells, and the modality of the cells changed from cuboid to ovoid; At 25th day, the oval and cuboid cells accumulation were observed.

结果表明，山羊MSCs在地塞米松、β-磷酸甘油和抗坏血酸的作用下，从诱导的第4~5天开始，即可见有些MSCs体积逐渐增大，由梭形或多角形转变为立方形或卵圆形；随着诱导时间延长，立方形或卵圆形细胞不断增多，到第15天时，有较多的立方形细胞，且这种变化经历了从立方形向卵圆形转变的过程；第25天，可见卵圆形和方形细胞堆积，诱导分化率为90.2%± 2.97%。

The sightline control strategy for bad measure precision is developed, and the control methods for vertical direction, approach direction and station keeping are presented.(2)The safe approach velocities are investigated for cuboid, sphere and cone keep out zone.(3)The design method for optimal trajectory under safety constraint is developed. The cone and cuboid keep out zone can be described using line constraint, and then optimal trajectory design can be translated to line programming problem under line constraint.(4) The design strategy of collision avoidance maneuver is discussed, and the collision avoidance scheme is analyzed for V-bar and R-bar approach.The control and trajectory safety in departure phase are investigated.

1提出了测量误差较大时平移靠拢段的视线控制策略，给出了横向、纵向和悬停的控制方法；(2)针对长方体禁区、球形禁区和锥形禁区三种禁区形式，研究了V-bar逼近和任意方向逼近的纵向安全速度计算问题；(3)提出了安全约束下的最优轨迹设计方法，将冲量和有限推力作用下的最优轨迹设计问题转化为线性规划问题，并给出了将锥形和方形安全区域约束转化为标准线性约束的公式；(4)探讨了紧急避撞机动的设计策略，分析了V-bar和R-bar接近的紧急避撞机动方案。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。