利用几何方法及计算机模拟研究开普勒第二定律，运算结果面积速度近似为常量，本文中精度为1 0 - 13。
Using a geometric method and computer simulation, the second Kepler's Law is studied. The calculated result shows that the areal velocity is approximately constant with an accuracy of 10 -13 .
他们发现，20世纪80年代之前的产量增长速度在20世纪90年代和21世纪有所放缓，这占据了作物收割面积的24%至39%。
They find that on between 24% and 39% of all harvested areas, the improvement in yields that took place before the 1980s slowed down in the 1990s and 2000s.
沙漠已经占据了大约四分之一的地球表面积，近几十年来还在一直以惊人的速度增加。
The deserts, which already occupy approximately a fourth of the Earth's land surface, have in recent decades been increasing at an alarming pace.
西方森林面积的快速增长似乎同其他各地的森林开采速度一样不可阻挡。
The growth of Western forests seems almost as unstoppable as deforestation elsewhere.
路易斯安那州正在以每30分钟一个足球场面积的速度失去湿地。
And Louisiana is already losing wetland: an area about the size of a football field every 30 minutes.
这项研究还表明，被观察到融化的土地面积每年以大约1.7万平方公里(6500平方英里)的速度增加。
The study also showed that land area where melting has been observed has been increasing at a rate of about 17, 000 square kilometers (6, 500 square miles) per year.
按照这个速度，在未来五年之内中国就将为全球的森林种植面积增加10%。这个数字，根据联合国粮农组织估计，为2亿6400万公顷，将占到全球森林覆盖率的7%。
At that rate China could add 10% to the world's total area of planted forest-which the FAO puts at 264m hectares, about 7% of the total forested area-in just five years.
许多投机者，包括穆阿迈尔.卡扎菲（Muammar Qaddaf），以每年足以覆盖一个挪威面积的速度抢占非洲的耕地，哄抬物价的同时，使当地人无家可归。
Speculators, among them Muammar Qaddafi, are snatching up much of Africa's arable soil -- enough acreage to cover Norway in a single year -- driving up food prices and leaving locals homeless
华盛顿方面积极的回应了这个观点，但是人们也注意到人民币增值速度(至少对美元)直线上升(见上图)。
That view is echoed throughout official Washington, though there is a recognition that the pace of yuan appreciation-at least against the dollar-is gathering steam (see chart).
《2005年全球森林资源评估》还发现，新的森林和树木种植速度在加快，但是《评估》指出，人工林仍不足森林面积的5%。
FRA 2005 also found that new forests and trees are being planted at increasing rates, but plantations still account for less than 5 percent of forest area, it notes.
如果当它远离太阳的时候，它的速度会变慢，这样面积就始终和时间成比例变化。
And, if it's farther away from the sun, then it has to go slower so that the area remains proportional to time.
世界上面积最大的冰盖开始沿海岸边缘逐渐消融，这令人们担心全球海平面的上升速度将快于科学家的预期。
The world's largest ice sheet has started to melt along its coastal fringes, raising fears that global sea levels will rise faster than scientists expected.
俄国在那个世纪的东进速度至今看来仍然让人感到惊奇——横跨西伯利亚的一大片陆地，其面积超过月球整个表面积。
The speed of Russia’s eastward advance that century across a Siberian land mass greater than the face of the moon still astounds.
北冰洋的冰层覆盖面积以大约每十年百分之十一的速度往下掉——也就是说非常快。我们认为，到2030年前后，如果九月一号到北极去，你很有可能将不会见到任何冰。
Our thinking is that by 2030 or so, if you went out to the Arctic on the first of September, you probably won't see any ice at all.
冲突的强度、大面积的地质破坏、援助的速度等参数都被作为创伤反应的分类参考数据。
Variables like intensity of impact, extended geographical destruction, rapidity of assistance are examples of modifiers that have emerged to categorize reactions to trauma.
让蓄电池制造商左右为难的是，充电的速度取决于电解质与电极之间接触的面积。
The battery-maker's dilemma is that the recharging rate depends on the area of contact between electrolyte and electrode.
规模硕士二更容易做线性，面积和体积起飞的速度，准确性和信心时估计，投标或规划。
Scale Master II makes it easy to do Linear, Area and Volume take-offs with speed, accuracy and confidence when estimating, bidding or planning.
可是，进步过滤速度能够削减布袋除尘器需求的过滤面积，从而能够用较小的除尘设备来处理一样体积的气体。
However, increasing the filtration rate can reduce the filter area required by the bag filter, thus being able to process the same volume of gas with a smaller dust removal device.
这项调查证实，南极西部冰盖正以每年约1320亿吨的速度迅速融化，但同时也显示，面积更大的南极东部冰盖正出乎意料地逐渐消融。
The survey confirmed the West Antarctic ice sheet is melting rapidly with the loss of around 132bn tonnes of ice a year, but revealed unexpected melting in the larger East Antarctic ice sheet.
Jan Heino最后说：“森林砍伐以惊人的速度在继续，全球每年毁林面积约1300万公顷。”
Deforestation continues at an alarming rate of about 13 million hectares annually at the global level.
欧洲森林面积继续扩大，不过速度低于90年代。
Forest areas in Europe continued to expand, although at a slower rate than in the 1990s.
在本文中，我们提出的分区预测算法考虑到了网络中组群移动所有可能的位置，速度及不同的覆盖面积。
In this paper, we propose a partition prediction algorithm considering network partition in any direction, at any speed, and with different coverage of group.
其特点是体积小、重量轻、使用方便、过滤面积大、堵塞率低、过滤速度快、无污染、热稳定性及化学稳定性好。
Features: small volume, light, easy to use, broad filtering area, low block rate, high filtering speed, no pollution, good heat stability and chemical stability.
不要用鳍为更多的速度或权力，但仅允许更大的表面积来推动你向前多一点。
Don't use the fins for more speed or power, but just allow the larger surface area to push you forward a bit more.
结果表明，在玉米生长发育期间，降水不同，叶面积增长速度不同、干物质积累速度不同、产量不同。
The result shown that, if the precipitation was different, leaf area increase rate was different, dry matter accumulated rate was different and the output was different during maize grow.
有些研究人员提出假设这些组群分为两组并以相同的速度，覆盖面积向相反的方向移动从而得出一种预测算法。
Some researchers proposed partition prediction algorithms by assuming that a group is partitioned into two clusters and they move to opposite Angle with the same speed and the same coverage.
自然风化的速度受进行化学反应岩石的接触表面积等因素限制。
Natural weathering rates are limited by, among other factors, the exposed surface area of chemically reactive rock.
其中，提出了流水线控制单元的优化设计，将控制状态机的状态数目从85个减少到23个，节省了电路面积，提高了速度。
The optimized design of pipeline control unit is also proposed, which greatly minimizes the FSM states from 85 down to 23, with improvement in circuit speed and area utilizing.
其中，提出了流水线控制单元的优化设计，将控制状态机的状态数目从85个减少到23个，节省了电路面积，提高了速度。
The optimized design of pipeline control unit is also proposed, which greatly minimizes the FSM states from 85 down to 23, with improvement in circuit speed and area utilizing.
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