单程的

Different from the scattering theory used in the derivation of conventional generalized screen propagator, in this paper, a high order formula of generalized screen propagator for oneway wave equation is proposed by using the asymptotic expansion of singlesquareroot operator.

不同于常规广义屏传播算子的推导中使用散射理论，本文利用单平方根算子的渐近展开，推导出了单程波方程广义屏传播算子的高阶表达式。

Consequently, the numerical calculation methods of the propagation ought to be Lie group transformation too, which is known as Lie group method.

本文应用李群方法，系统表述相空间中的地震波和频率空间域中的单程波传播，并由此分别给出地震波场数值模拟和深度偏移的李群算法。

Els Quatre Gats was just a five-minute walk from our house and one of my favorite haunts. My parents had met there in 1932, and I attributed my one-way ticket into this world in part to the old cafe's charms.

四猫酒馆离我家只要步行五分钟就到了，那也是我最爱露面的去处之一，1932年，我的父母在那里相遇相知，我也因这张单程车票降生到凡尘世间而踏上一条不归之路，也是这家老咖啡馆引人魅力的一部分。

The predictions are identical with that of foreign underwater acousticexperiments.The third,the scattering theory are applied in prediction of seareverberation and inversion of sea bottom parameter.Shallow-sea monstaticreverberation is predicted by combining shallow-sea normal mode theory withscattering theory.Then with simulated annealing of neural network and scatteringtheory accurate inversion of sea-bottom parameter and surface roughness are given.

第三，把散射理论应用于海洋混响的预报和海底介质参数的反演，首先通过浅海简正波理论和散射理论相结合，对浅海单程混响进行了预报；然后利用神经网络理论中的模拟退火法和散射场理论相结合，准确地反演了海底介质参数和表面粗糙度。

For example, having a patient raise his legs could generate pain in the lower back if there's a legitimate injury, and one way to do that unobtrusively is ...

例如，有一个病人提高他的双腿可能产生疼痛的腰部是否有一个合法的损伤，单程这样做unobtrusively 是。。。

The overall yield was 43.6%.The yield of reduce of ester was increased nearly one times than the past method because of KBH4-LiCl as the reducing agent instead of NaBH4. Changing the reaction conditions of bromization, the one-way yield enhanced 30%. The yield of reduce of the bromide was added by one times by improving the process. Tefluthrin was achieved by the catalytic esterification of DCC and DMAP.

优化后工艺对四氟对苯二甲酯的还原采用了廉价高效的还原试剂KBH4-LiCl，使收率比NaBH4法提高了近一倍；对溴化反应条件进行了优化，单程收率提高了30%；对溴化物还原条件的优化，使其收率提高了近一倍；采用了催化剂DCC和DMAP合成了最终产品七氟菊酯。

This product was listed on the end of 2007, incorporates the industry's original Bi-ink double-charged print head technology, two lines of black line up the print head nozzles disnature width to one-inch, print range is from the past two times, the same print area, the sprinkler head General printer requires two round trip, but an C110 to complete.

这款产物2007年不顶上市，拔取了业边步武的独黑墨打印脚Bi-ink技艺，两动白色喷嘴错位摆列，打印脚宽度也扩不小为1英寸，打印边界是畴前的两倍，同样的打印地区，凡是打印机必给喷脚行两个单程，而C110功一次不离可达成。

Researchers still don't know enough about how many supplement ingredients affect men and women to render a verdict one way or the other, but that hasn't stopped advocates and opponents of natural products from lobbing the data back and forth in search of an answer.

研究人员还不知道的不多，有多少强化剂对男人和女人作出了裁决单程或是其他人，但是这并未停止倡导者和反对者天然产物的游说情况的数据来回搜寻一个答案。

Wideangle parabolic approximations to wave equation usually lead to nonconstant differential migrators with their coefficients varying with lateral velocity variations, and hence require a finitedifference numerical implementation.

波动方程宽角抛物逼近得到的通常是非常系数的单程波传播算子，其系数是速度横向变化的函数，因此需要利用有限差分进行数值实施。

From the coefficient signs of three other independent variables, we can see that vehicle mileages, cargo weight and loaded one-way mileage are in proportional to vehicle's total energy consumptions.

从其它三个独立变量的系数我们可以看出：运输工具里程数、货物重量以及满载时的单程里程数与运输工具的总能耗成正比。

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。