查询词典 half-life

The results indicate that the cone half angle increases with liquid pressure. The stripped half wavelength liquid fragment seems to break into a series of drops immediately and no obvious contraction from liquid fragment to ligament is seen.

研究结果表明，液膜半锥角随着液压的增加而增加，半波长的液膜段剥落后几乎立即破碎成液滴，看不到明显的液膜段收缩成液丝的过程。

The effects of half expansion angle , expansion ratio and boundary conditions on performance of 2D micronozzle with half throat heitht 34 were numerically studied.

本文数值模拟喉部半高为34μm的二维微喷管，分别分析了固定进口及固定喉部尺度下扩张角、扩张比以及滑移边界条件对微喷管性能的影响，发现最佳半扩张角在20°-22°之间，而最佳扩张比为7。

The refractive index of metal effects mainly resonance depth and the half peak breadth. There is an optimum metal thickness with the largest resonance depth and the smallest reflection coefficient. The refractive index and thickness of dielectric layer and recording layer impact resonance angle and the half peak breadth.

金属薄膜的折射率是影响共振半峰宽度和共振深度的主要因素，计算表明存在一个最佳的金属层厚度，使得共振深度最大，反射系数最小；介质层和记录层的折射率和厚度的变化均会影响共振角的大小和共振峰半峰宽的变化。

The optimization result shows that the maximal attack area is an ellipse of 17 km half long axis and 10 km half short axis, and it is better than the conclusion of a lot of simulation researches aiming at this warhead, and it can offer reference for further design of reentry trajectory.

优化结果表明，最大可攻击区范围是一个长半轴为17 km，短半轴为10 km的椭圆区域，此结果优于针对该弹头进行的大量弹道仿真所得的结论，可为进一步弹道设计提供参考依据。

The axially symmetric torsion of rigid circular shaft of varying diameter embedded in an elastic half space is studied by line-loaded integral equation method, where the problem is formulated by distributions of fictitions fundamental loads PRCHS (point ring couple in half space) along the axis of symmetry in interval of the shaft and is reduced to a one-dimensional and non-singular Fredholm integral equation of the first kind and is easily solved numerically.

弹性半空间；本文用线载荷积分方程法研究嵌在弹性半空间的刚性变直径圆轴的轴对称扭转。利用将"半空间的点环力偶"这一虚的基本载荷沿对称轴的圆轴区间中分布就能使本问题归结为一个一维的非奇异的Ferdholm第一种积分方程，且很易用数值求解。文中给出刚性圆锥，圆柱，圆锥柱嵌在弹性半空间的扭转的数值计算的例并和他人的已知结果相比较。

The numerical result shows that the contributions from the interface optical phonon mode with higher frequency and the LO-like half space mode to the binding energy and the Stark energy shift are important and obviously increase with increasing hydrostatic pressure, whereas the interface optical phonon mode with lower frequency and the TO-like half space mode are extremely small and are insensitive to the impurity position and hydrostatic pressure.

数值计算结果表明，高频支界面声子模和类LO半空间声子模对于结合能和斯塔克能移的影响是主要的，且随压力的增加而显著增大，而低频支界面声子模和类TO声子模的作用则很小，且对于杂质位置和流体静压力的变化不敏感。

Moses took half of the blood and put it in bowls, and the other half he sprinkled on the altar.

24：6 摩西将血一半盛在盆中，一半洒在坛上

And Moses took half of the blood and put it in basins, and half of the blood he sprinkled on the altar.

24：6 摩西将血一半盛在盆中，一半洒在坛上。

Half boot camp, half think tank, the FBI academy houses some of the bureau's most innovative divisions.

一半训练体力，一半训练智力。联邦调查局学院拥有一些局内最创新的单位。

He ate half of the cake and gave the other half to his brother.

他吃了一半的蛋糕，把另一半给了他弟弟。

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。