This raises the matter of a lake's residence time.
这就引起了湖泊的“停留时间”问题。
A given lake's residence time is by no means a fixed quantity.
某一湖泊的“停留时间”并不是一个固定值。
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.
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。
The residence time distribution for reactors with circulating systems is analysed.
本文对外循环反应器的停留时间分布进行了分析和计算。
Intelligent picture rotation, surface rotation and residence time can be arbitrarily set.
智能画面旋转，面旋转和停留的时间可以随意设定。
The second experiment is to measure the liquid residence time distribution in the packing.
实验之二是液体在填料内停留时间分布的测量。
The distribution of residence time of experiment materials is similar to normal distribution.
试验物料在回转窑内停留时间的分布与正态分布比较接近。
When the yield was less than 40%, the residence time in two bioreactors was approximately equal.
研究结果表明：当转化率小于40％时，酶反应在两种反应器中所需的停留时间相当。
The velocity profile and residence time distribution in cold model of Texacogasifier were measured.
测定了德士古气化炉的冷态速度分布和停留时间分布。
The compact matrix structure and short hydrologic residence time result in the low treatment efficiency.
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。
Increasing the residence time of the volatile matter, the yield of tar is decreased and that of gas is increased.
随着挥发物停留时间的增加，其焦油收率均下降，而气体收率则上升。
When the residence time is long, the germs have enough time to degrade and absorb VOCs, so the efficiency is high.
当停留时间长时，微生物有足够的时间去吸附降解有机物，净化效率高。
The average residence time of oil gases in the disengager is also shortened by adding an unique device for gas withdrawl.
采用特殊设计的气体引出方式，大大缩短了油气在沉降器内的平均停留时间。
The residence time distribution in W-SFCW system experiments was studied using the reactor theory, from chemical engineering.
运用化学工程中反应器理论，试验分析波式潜流人工湿地（W-SFCW）中的停留时间分布。
The formalation design for oral DDS or GIDS is essential to achieveprolonging stomach residence time and improving drug release.
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 effect of residence time on ethanol yield, residual sugar, ethanol productivity and reactor volumetric efficiency were studied.
研究了停留时间对乙醇产量、残糖量、乙醇生产能力和反应器效率的影响。
The PT acid content in PTA was controlled from the aspects such as in-feeding, crystal temperature, slurry flow and residence time.
从进料、结晶温度、浆料流速和停留时间等几个方面进行控制，降低了PTA中的PT酸含量。
Factors affecting coking at the bottom of the fractionator are composition of slurry, temperature, catalyst content and residence time.
影响分馏塔底结焦的因素有分馏塔底油浆的组成、温度、催化剂含量及停留时间。
Pulse tracer method was used to measure the residence time distribution (RTD) in Two-dimensional Three-phase circulating fluidized bed.
用脉冲示踪法对二维三相循环流化床液体停留时间分布(rtd)进行了测定。
Besides, the influences of sound pressure level, residence time and initial total number concentration on agglomeration were investigated.
同时，研究了声压级、停留时间和气溶胶初始浓度等参数对声波团聚的影响。
Thermosensible gel formulation can prolong the nasal residence time of drug greatly except for the merits of traditional nasal preparation.
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。
At some conditions the simplified methods for calculation of the residence time distribution for reactors with circulating systems are suggested.
提出了在某些情况下外循环反应器停留时间分布的简化计算方法。
The solids density and solids residence time in circulating fluidized bed increase with increasing solids circulation rate and reducing gas rate.
降低气速、提高颗粒循环速率，可以提高床内颗粒浓度，增加颗粒停留时间。
Due to extremely short residence time of supersonic airflow, it is difficult to effectively mix and combust for the fuel and air in scramjet combustor.
高超声速气流在燃烧室的停留时间非常短，使得超燃冲压发动机燃烧室内燃料与气流的混合及其燃烧变得非常困难。
Meanwhile, the effects of different compounding process and processing condition such as residence time and screw configuration on PCN were summarized.
概述了停留时间、螺杆结构等加工条件和不同成型工艺对制备pcn的不同作用。
With the completion of the Three-gorge Project (TGP), the residence time of the water body will be prolonged, and the eutrophication within TGR will be aggravated.
随着三峡工程的全面完工，库区内水体滞留时间的进一步延长，三峡库区水体富营养化趋势将会进一步加剧。
The residence time can be defined according to rotational speed of the rotary dryer, radius of the drum, the slope of the drum, wind-force and the particle quality.
在考虑了转筒转速、转筒半径、转筒倾角、风力大小、物料颗粒的质量等因素之后，可以模拟物料颗粒在转筒内的滞留时间。
The sludge residence time in the screw press and thus the filtration time can be adjusted to individual requirements by adjusting the rotational speed of the screw shaft.
污泥停留在螺旋压力机的时间，（即）过滤的时间可以根据实际情况通过改变螺杆轴转的速调整。
The sludge residence time in the screw press and thus the filtration time can be adjusted to individual requirements by adjusting the rotational speed of the screw shaft.
污泥停留在螺旋压力机的时间，（即）过滤的时间可以根据实际情况通过改变螺杆轴转的速调整。
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