实际时间

Ca2 was activated by microwave to investigate its physical characteristics and dechloriantion.The change of total pore area,pore area of different pore size zone,pore size distribution of the sample before and after reaction of different microwave activation was examined by mercury porosimeter.

采用微波炉对一定质量的氢氧化钙样品进行活化，利用压汞仪考察了不同微波活化时间及脱氯反应前后的Ca2总比孔表面积、分段比表面积和孔径分布的变化，并在脱氯实验台上对脱氯效率进行实际测试。

By analyzing the results of simulation and execution,the FPGA-based genetic algorithm reduce the operation time effectively and make it poss...

实际效果显示，这种硬件实现方法，不仅结构简单，而且有效地减少了运算时间、提高了运行效率，为遗传算法能在一些实时、高速的场合得到应用提供了依据。

The conclusion and rule is helpful to precooling plan and saving time in the voyage.

本研究对船舶实际航行中的预冷计划和节约预冷时间具有指导意义。

This system can enormously save time before operation, expediently analyze faults, simulate dispatching control mode in all situations and specially be suitable to practice of emergency preplan in given condition.

结果表明：仿真系统对于实际应用系统的研发、开通运营、日后的维护和系统升级具有不可替代的作用，它能够极大地缩短开通前的调试时间，方便故障分析和各种条件下调度指挥方式的模拟，特别适合特定条件下应急预案的演练。

125I seeds interstitial brachytherapy is a new kind of method to treat with malignant tumors. The aim of the experimental research through animals is to investigate the therapeutic effect and the pathological changes on rabbits' VX_2 liver tumor treated with ~(125)I seeds interstitial brachytherapy and percutaneous ethanol injection under CT guidance. We aim to identify the therapeutic effect and the criterion of ~(125)I seeds radiant activity selection, optimize the therapeutic regimen, investigate the tissue damage, its' prothetic time and the relationship between time and dosage effect, and approach to provide fundamental theories for ~(125)I seeds clinical using and arrive at the best dosage range of ~(125)I seeds interstitial brachytherapy. And it can become a new and effective kind of therapies to be applied for the clinical treatment to mid-advanced stage and recurring liver tumor.

放射性粒子组织间植入是肿瘤治疗的一种新方法，本研究通过动物实验探讨CT导引下瘤体内~(125)I粒子植入治疗，以及~(125)I粒子组织间植入联合经皮乙醇注射综合治疗兔VX_2肝转移癌的疗效及其病理基础，确证~(125)I粒子组织间植入治疗肝癌的有效性，确定治疗高度恶性肿瘤的粒子选用标准和最佳治疗方案，同时探索~(125)I粒子在家兔肝脏组织间植入内照射后放射损伤和修复的变化及其时间与剂量效应的关系，提出临床应用~(125)I粒子组织间植入治疗的最佳剂量范围，为该疗法在实际应用中合理化治疗方案的取得提供理论依据，并为临床中晚期及复发肝癌的治疗提供一种新颖、有效的手段。

While making use of this step to set up the model of time series, several model of well reflectedly actual data usually appear , carrying on th...

在利用此步骤对时间序列建模时，经过模型适用性检验后经常出现几个充分反映实际数据的模型，这时需要进行模型选择。

I've always thought a resumable timer would be very handy to measure the actual amount of time I spend doing something, excluding various distractions.

我一直认为一可恢复的计时器会非常方便来衡量我花时间做一些实际数额，不包括各种干扰。

The issues of present seismic wavelet frequency caused by different concepts, such as apparent frequency, dominant frequency, peak frequency and centroid frequency, etc., which are defined by different methods, and understanding deviation, definition of seismic wavelet frequency for time and frequency domain are concluded and summarized. On this basis, three kinds of seismic wavelets in common use such as Ricker and Zinc wavelets as well as sine wavelet with exponential attenuation characteristics are analyzed and a conclude is achieved that apparent frequency and dominant frequency are consistent in essence, but peak frequency and centroid frequency as well as apparent frequency or dominant frequency are not completely consistent with different seismic wavelets. For actual seismic data, peak frequency can approximately be used as dominant frequency, but it is not suitable when seismic wavelet is known for it can give out any wrong knowledge and results.

针对目前地震子波频率由于定义方式出现的各种概念（视频率、主频、峰值频率、中心频率等）以及理解上出现的偏差等问题，首先从时间域定义和频率域定义2个方面进行了归纳和总结，并在此基础上对3种常用地震子波（Ricker子波，Zinc子波，正弦指数衰减子波）进行了分析和研究，得出视频率与主频概念一致，但不同地震子波的峰值频率、中心频率和视频率之间并不完全一致的结论；而对于实际地震资料，将峰值频率近似看作地震子波的主频是可以的，但在地震子波已知的情形下这样做是不恰当的，甚至可能会得出错误的结论和认识。

More plausibly, as the economist Joseph Sabia suggests in a forthcoming article,"if the realised benefits of sexual intercourse are higher than the ex ante anticipated benefits, adolescents may substitute time and energy away from investments in human capital and towards investments in future obtainment of sex."

更加看似有道理的一点在于——正如经济学家约瑟夫·萨比亚在一篇即将发表的文章中所写的那样：&如果性交的实际收益高于事先的预期收益，青少年会把在投入在人力资本方面的时间和精力，转而投向未来性生活的获得。&

In actual reactors, the cooling condition outside the hexcan-wall of blocked fuel subassembly is analogous to its counterparts in the SCARABEE BE+ experiments. The upward and downward heat transfer could be neglected, while the radial heat transfer plays a key role in slowdown the accident scenario. As time goes on, the dominant radial heat transfer mechanism is liquidus sodium convection at first, and then gradually transforms into sodium condensation near the inner surface of the hexcan-wall, and finally becomes volume heated boiling pool convection.

对实际快堆中发生全堵的燃料组件而言，其外部的冷却条件与SCARABEE BE+系列实验非常相似；2）堵流组件向上和向下的传热可忽略不计，径向传热对事故有较强的延缓作用；3）随着时间推进，径向传热的主导机理依次为液态钠单相对流、钠蒸汽在组件盒内壁冷凝、体热源沸腾池散热。

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。