它们从小湖的几天到大湖的几百年不等；加州的太浩湖有700年的滞留时间。
They range from a few days for small lakes up to several hundred years for large ones; Lake Tahoe, in California, has a residence time of 700 years.
对气相滞留时间进行了精确的定义。
The accurate definition of the gas phase residence time has been given.
虽然其脑摄取较低，但有较长的滞留时间。
Although the brain uptake is lower for this compound, it has longer retention in brain.
而水流速度决定了其在水体中的滞留时间。
测量发射到介质表面微波反射回来的滞留时间。
To measure the dwell time between sending and the reflection of a micro wave by the surface of the medium.
方法产后胎盘滞留时间较短的可以行人工剥离胎盘术。
Methods Make manual removal of placenta if the time of postpartum retained placenta was shorter.
现行地貌单位线计算方法忽略了与坡地漫流有关的滞留时间。
The present methods of GIUH neglect any time delays associated with overland flow pathways.
结果该制剂可以延长药物在胃内的滞留时间，提高生物利用度。
Results This preparation had the advantages of prolonging the gastric retention time and enhancing the bioavailability.
探索实验中记录小鼠穿越平台次数和平台象限滞留时间百分比。
On probe day, The Times across platform and time percent during platform quadrant were recorded.
根据滞留时间和标准品的添加，而鉴别出植物雌激素的层析波峰。
Chromatographic peaks assigned to phytoestrogens were identified by retention time and by comparison to the addition of standards.
结果显示，结合物在血液中的滞留时间随着分子量的增加而增加。
The results showed that the blood retention of conjugates increased as the molecular weight increased.
本文还给出了三台以上机床带有滞留时间排序问题的启发式算法。
For three or more machine problems, an efficient heuristic algorithm is presented.
应用随机穿越理论分析了有限个随机滞留时间序列中的毁伤概率问题。
The killing probability in finite random stationary time series is studied by stochastic passage theory.
致密的基质结构和短暂的水力滞留时间是造成处理效率偏低的主要原因。
The compact matrix structure and short hydrologic residence time result in the low treatment efficiency.
胃内漂浮制剂，亦称漂浮药物输送系统，是延长药物胃内滞留时间的一种制剂。
Floating drug delivery system (FDDS) is one of the approaches to increase the retention time of an oral dosage form in the stomach.
结果该剂型可以延长药物在胃内的滞留时间，提高生物利用度并减少给药次数。
Results Hollow microspheres have the advantage of prolonging the gastric retention time, enhancing the bioavailability and decreasing dosing frequency.
配有发光二极管显示器，选单参数控制、可调节的电气滞留时间和参数储存器。
It features an LED display, menu driven parameter control, electronic ramp and dwell, and a memory for parameter storage.
测定平均滞留时间的方法很多，实验条件不同，所采用的测定及计算方法也不同。
Many methods for the measurement of mean retention time are used. Different methods should be used under different experimental conditions.
测定平均滞留时间的方法很多，实验条件不同，所采用的测定及计算方法也不同。
Many methods for the measurement of mean retention time are used. Different methods should be used under different experimental conditions. The main methods were reviewed in this paper.
NO的氧化受烟气在反应器内滞留时间的影响较小，而它受烟气流速的影响较大。
The reside time of flue gas in the reactor has less effect on the NO oxidation.
经口给药的DDS大多以延长药剂在胃内滞留时间和改善药物释放为其设计出发声点。
The formalation design for oral DDS or GIDS is essential to achieveprolonging stomach residence time and improving drug release.
在河流生态系统中，浮游藻类的生长繁殖与在水体中的滞留时间有着特殊重要的关系。
The growth and reproduction of phytoplankton are correlated with the remaining time in river ecosystem.
通过速率是消化道功能的一个重要量度，通常采用平均滞留时间来描述食物的通过速率。
The rate of passage of digesta through the digestive tract, which is best described by the mean retention time, is an important measure of gut function.
强径流带内岩溶水积极参与现代水循环，平均滞留时间为51年，具有较强的更新能力。
Karst water in the strong runoff zone takes an active part in the modern water cycle, with an average residence time of 51 years, and so has a relatively strong renewable capacity.
急诊滞留时间，在抢救脱险病例和死亡病例之间比较差异有统计学意义（P<0.01）。
The time of staying in the emergency department differed significantly between the survival patients and those who died(P<0.01).
除了隐形费用和未被告知原因的机舱滞留时间，还有一些其他事情航空公司永远不会对你说。
Besides the hidden fees and hours sat on an airplane without any clue as to why you're holding there are certain things that airlines will never tell you.
除了隐形费用和未被告知原因的机舱滞留时间，还有一些其他事情航空公司永远不会对你说。
Besides the hidden fees and hours sat on an airplane without any clue as to why you're holding, there are certain things that airlines will never tell you.
这种温敏凝胶剂除了具有一般鼻用制剂的优点以外，还可以明显延长药物在鼻腔的滞留时间。
Thermosensible gel formulation can prolong the nasal residence time of drug greatly except for the merits of traditional nasal preparation.
探索期记录穿越平台次数、平台象限滞留时间和平台象限滞留时间百分比，并进行统计学分析。
Times across the platform, time during platform quadrant and time percent during platform quadrant were recorded on probe day. The data were statistically analyzed.
探索期记录穿越平台次数、平台象限滞留时间和平台象限滞留时间百分比，并进行统计学分析。
Times across the platform, time during platform quadrant and time percent during platform quadrant were recorded on probe day. The data were statistically analyzed.
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