They would have to concentrate on natural processes that continue at a constant rate and that also leave some sort of tangible record in the rocks.
他们必须专注于以恒定速度持续的自然过程，并且在岩石中留下某种有形的记录。
This "genetic drift" happens at a constant rate.
这种“遗传漂变”以恒定的速率产生结果。
If you move in the y direction, it decreases at a constant rate.
如果你在y轴的方向上移动，函数值将匀速地减少。
Dividends and portfolio value are expected to grow at a constant rate.
股利和资产组合的价值可望以一个稳定不变的比率增长。
Some projects need a nice, steady, low-voltage pulse at a constant rate.
一些工程项目需要一个稳定可靠并固定频率的低电压脉冲。
So, now, what does it mean to say that area is swept at a constant rate?
匀速扫过的面积又是什么意思呢？
From the sun to the planet, it is swept out by the line at a constant rate.
太阳和行星的连线以相等的速率扫过面积。
Nature produces them only very slowly, parsimoniously, and at a constant rate.
但大自然对这些人物的造就非常缓慢。非常吝啬，而且始终如此。
It is expected that the cooling water flow is re-circulated at a constant rate.
希望冷却水以恒定的速度循环。
If a part is allowed to cool slowly enough at a constant rate then the final part will be relatively homogenous and stress free.
如果零件以恒定速率冷却得足够缓慢，最终零件将相对均质并释放内应力。
The take-off should be performed straight up from the landing area, at a constant rate of climb, with little lateral deviations.
由降落区内将直升机垂直起飞，保持稳定的上升速度，上升的过程中允许轻微的横向偏移。
After a initial transient, "burst effect", the drug was released continuously from the device at a constant rate for a long period of time.
本给药系统在“漏槽”状态下测定释放速度，经短时间的较快释放后可维持长期的零级速度。
Objective To study the rate and time-course of the cerebral uptake of propofol during the intravenous continued infusion at a constant rate.
目的研究恒速静脉输注异丙酚时脑摄取与输注速率、输注时间的关系。
Five minutes after that come the fire-raisers, who light 10km of “fireline” using drip torches (devices that drop flaming paraffin at a constant rate).
五分钟后，纵火人员出现，用滴液点火器（一种可以以形同的间隔点燃石蜡的装置）制造出一条长达10公里的“火线”。
Now, scientists report that they've created a contact lens that can deliver a high concentration of antibiotic at a constant rate for more than 30 days.
目前，科学家报告称他们已经创造出了一种隐形镜片，它能以固定速度持续释放高浓度抗生素超过30天。
It is great important to study an inventory model for deteriorating items with variable positive lead time where items deteriorated at a constant rate.
在研究易腐库存模型时，讨论提前时间对易腐物品库存模型的影响是有重大意义的。
Rather than being emitted at a constant rate, technology demands they are ‘pulsed’ in short and frequent bursts which appear to be far more biologically harmful.
技术上这些电波通常是短暂而频繁的激发出来，而并非以恒定速率释放，这似乎不会造成多大的生物性损伤。
Thread cutting. When performing thread cutting, the axial feed must be kept at a constant rate, which is dependent upon the rotational speed (RPM) of the workpiece.
在螺纹切削作业时，轴向进给必须保持恒定速率，这取决于工件的转速(rpm)。
Here, however, the farmer's technology for producing meat and potatoes (as summarized in Table 3-1) allows him to switch between one good and the other at a constant rate.
但是这里，农夫生产土豆和牛肉的技术(表3 - 1所示)使得他可以以一种恒定的速率在生产一种货物和另一种货物之间切换。
The general drawdown equation and its particular cases for a partially penetrating well discharging at a constant rate from an aquifer-aquitard system are derived and investigated.
本文针对“二元结构”含水层研究了在定流量抽水下非完整井非稳定流情况下的计算方法。
The second issue is circumvented by sending a "keep-alive" or "sync" message at constant intervals to fool the browser into thinking that data is coming at a slower rate.
第二个问题可通过“保持活动”或按固定间隔“同步”消息来欺瞒浏览器，使浏览器认为数据是以较慢的速率传入的。
New Experimental methods for measuring the fracture properties of CVD diamond films are discussed. A special computerized testing rig has been invented which can operate at constant loading rate.
文章介绍了一种利用恒载荷速率加载测试金刚石膜断裂性能的试验方法，并建立了国内第一台金刚石膜断裂性能测试的专用装置。
In 1998 astronomers discovered that the universe's expansion is accelerating at a rate consistent with a cosmological constant 10-120 times the value predicted by quantum theory.
天文学家于1998年发现到宇宙正在加速膨胀，但其加速度所对应到的宇宙常数，却是量子理论预测值的10- 120倍。
The increasing rate of the gas seepage velocity of outburst coal samples was decreasing with the increase of gas pressure and reaches to a constant value at last.
而突出煤样的瓦斯渗透速度增加率则随着瓦斯压力的增大而减小，最终趋近于一恒定值附近。
The hydrolysis rate constant increases at a exponential function with temperature increase.
温度升高，水解速率常数呈指数函数关系递增。
By contrast, the viscosity of a melt of a plastic at a constant temperature changes markedly as the shear rate changes.
与之对比的是，塑料熔体在一定温度下粘度随着剪切速率的变化而变化。
The difference between static bottomhole pressure and flowing bottomhole pressure (in psi) at a constant fluid production rate.
在恒定的流体产量下，在井底静压力与井底流动压力之间的压力差值。
The formula shows the transport rate is not a constant but varies with the relative exposure degree of particles that lying on riverbed when the flow intensity is at fixed value.
提出了一种计算推移质输沙率的方法及公式，该公式表明，在水流强度一定时，输沙率并非为一个常量，而是随颗粒在床面的相对暴露度而变。
The formula shows the transport rate is not a constant but varies with the relative exposure degree of particles that lying on riverbed when the flow intensity is at fixed value.
提出了一种计算推移质输沙率的方法及公式，该公式表明，在水流强度一定时，输沙率并非为一个常量，而是随颗粒在床面的相对暴露度而变。
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