实际时间

Furthermore, how to apply the model efficiently in practice is deeply discussed. As the variance produced by the forecasting model as concerned, the real-time revised method of hydrological forecasting is highlighted. Next arranged, the multi-stratum recursive prediction model is put forward to forecast the error series that is a dynamic system. Later, an error selfregressive multi-stratum recursive prediction model is set up as well as a current algorithm offered. Finally, the difference collated model and the gloss control method, which are devoted to updating the mid-long term hydrological forecasting during the meditate period, are put forward.

在综合评述中长期水文预报现有方法和模型的基础上，采用时间序列分析方法，建立中长期水文预报的时间序列组合模型，并对模型如何在实际中有效应用作了较为深入的探讨；针对模型预报所产生的误差，又重点研究了水文预报实时修正方法：提出了采用多层递阶预报方法对误差序列这一动态系统进行预报，建立了误差自回归多层递阶预报模型，并提出了较为通用的解算方法；给出了水文中长期预报中期修正的残差相关模型和总量控制方法。

However, system delays (such as processing time, channel information collection time, etc) are unavoidable so that the base station can only know the delayed channel information at most. These delays make the current subchannel and power allocation scheme not optimal to the current channel condition, which decreases the channel capacity gain of dynamic resource allocation over fixed allocation.

在实际系统中，各种延时（如处理时间，信道信息收集时间等）使得基站只能获知部分或延时的信道信息从而使得在基站端进行的资源分配可能对于当前的信道情况不是最优的，这样，应用了动态资源分配可以达到的系统容量相对于固定资源分配的容量的增益就有所下降。

The attitude seems to be 15 msec here, 20 there, stick it on a queue, finish up a timeslice, who cares, right?

实际的响应时间可能是15毫秒也可能是20毫秒，在一个范围之内摆动，在一个时间片内才能完成响应，但谁会关心这些微小的不足或差别呢？

C. Estimate truthfully how long the surveys are going to take for your customers: for example, if the survey is expected to take longer than 10 minutes, don't tell your customers 5 minutes.

与客户实际说明一下该问卷可能需要的发费的时间：就比如，如果该问卷是需要10分钟以上才能做完的，别跟客户说就只花他们5分钟的时间。

The method is called apparent density inversion. The inversion technique overcomes drawbacks of long computation and unstable solution, it takes less than 20 seconds to compute a density data set of 128 ×128×10 points on a PC of 1.99 GHz. The method is demonstrated on synthetic models and on real gravity data

本反演方法克服了传统已有方法计算时间特别长、解稳定性差的缺点，在主频1.99 GHz的微机上，反演128×128×10个密度值的计算时间小于20 s，理论模型和实际资料的应用表明反演具有较好的效果。

The workunits generated at first by the S5R4 workunit generator all at the upper end of the runtime variation for a given frequency band. They should average out over time, but at the beginning we got all "bad" ones.

S5R4目前的任务单元计算时间都偏长（译注：所以导致得分率的实际降低比例超过了25%），以后的任务单元计算时间平均来说会比较正常，但现在最早这批全是时间比较长的

The relations between soil surface resistance and evaporating time ,and difference of vapour pressure between evaporating plane and atmosphere were simulated.Simulating result of the latter was better than that of the former .

同时，还对土壤表面阻力与蒸发时间的关系、与蒸发时间及土壤蒸发面和大气间水汽压差的关系进行了模拟，结果后一种比前一种模拟更符合实际。

In this model the fuse is simulated by a time variable nonlinear resistor combined with a switch, the nonlinear resistor represented the fore-arc resistor during fusing process, the switch is used to control the cut off time, and both of the above is calculated by the ANSYS. Compared the real assay curve and the simulation wave we found that: the calculated overvoltage amplitude value is accuracy with error less than 5%.But the wave is more or less different especially the part of the post-arc.

在电磁暂态计算程序——EMTP/ATP中，根据实际情况建立了熔断器开断试验电路的仿真模型，其中熔断器模型采用一个时间变量非线性电阻和开关的组合来代替，前者代表熔断器熔断过程的弧前电阻，后者控制开断时间，两者均由ANSYS计算得到。

The quality, time and constraint condition of project was imported the system, whenas actual target of quality and time was putout .

将项目质量与时间及其约束条件输入系统，其输出是质量和时间的实际指标。

The model based on minimization cost is more accorded with the actual condition of berth allocation. The importances of ships in port are fully considered in this model. In general, the unit time cost of big ship is higher and that of small ship is lower, so the big ship should be berthed as soon as possible to minimize the sum of costs of the ships stayed in the ports.

基于成本最小的模型更加符合港口泊位资源配置的实际情况，并且充分考虑了船舶的重要性，一般情况下，大船单位时间内的成本相对较高，而小船单位时间内的成本相对较低，故大船应尽可能提前靠泊作业，从而达到所有船舶在港总成本最小。

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。