在其他条件相同的情况下，这意味着他们必须开拓出比农学家更大的土地面积，以获得相同数量的食物、衣服和其他必需品。
All else being equal, this means they must exploit larger areas of land than do agriculturalists to secure the same amount of food, clothing, and other necessities.
在自愿捐赠的条件下，当居民人数增加时，公园的面积将减少。
Under voluntary contributions, as the neighborhood grows in number, the size of the park shrinks.
目前面临的主要困难有生活及公共卫生条件差、疾病监控体系大面积受损、进入受灾严重地区的渠道有限等问题。
Major challenges include poor living and public health conditions, largely destroyed disease monitoring and containment systems and limited access to some of the worst-hit areas.
然而，由于各岛屿国家的陆地面积、1人口密度、气候、地理地形条件等有很大差异，它们的森林覆盖程度也有很大差别。
However, due to a considerable variation in land area, 1 population density and climatic, geological and topographical conditions, the extent of forest cover differs greatly among the island states.
另外，他人对公园的使用也减少了公园对个人的效用，因此在自愿捐赠条件下，公园面积将随着居民的增加而减少。
Moreover, use of the park by others reduces the value of the park to each individual, so that the size of the park shrinks as the population grows under individual contributions.
这样在自愿捐款条件下，公园的均衡面积为S0。
Consequently, under voluntary contributions, the only equilibrium park size is S0.
在这几年的实验过程中，Schreibman说，“我和我的同事意识到我们可以在一个很小的面积内，在陆地上、在受控的条件下养很多的鱼。”
Over the course of years of work, Schreibman says, "it just occurred to me and my colleagues that we can grow a lot of fish in a very small area, on land, under controlled conditions."
大面积致密砂岩的存在、砂岩的低渗透性以及充足的天然气供应都是形成深盆气藏的有利条件。
The existence of vast area of tight sand rock, low permeability of sand rock and plenteous gas supply are all favorable conditions for the formation of deep basin gas traps.
由于急于改进耕作条件，就大面积地试种了这种新庄稼。
Eager to improve farming conditions, they tried out this new crop on a large area.
在这些条件下，得知一根这种硅碳棒所能提供的总的功率，需乘以其辐射面积。
To find the total amount of power one Element could supply under these conditions, multiply this value by the radiating surface of the Element.
叶面积在封闭和通气条件下分别增加了5倍和3倍。
The leaf area increased 5 and 3 fold in the closed and diffusive conditions, respectively.
该方法给出了基于面积值判断的快速终止条件，避免了异常情形的特殊处理，并能通过区域测试快速判定两多边形是否发生干涉。
QQH algorithm provides a fast terminate condition based on judging the area and avoids the special process for the exception, as well as determines whether interference occurs or not by region test.
在重复观测的条件下，手持GPS测量面积的相对误差可以达到2.0％，基本满足林业生产中测量面积的精度要求。
Under the condition of re-observation, the relative errors of measuring area with the pocket GPS could reach 2.0% , which could meet the precision demand of measuring area in forestry practice.
介绍了沉降槽的设计条件，计算了酸不溶物的沉降速度和沉降面积，总结了改造效果。
Design conditions of settling tank were introduced, settling speed and settling area for acid insoluble were calculated, and the reformation effect was summarized.
文章在分析水夹套式氯化氢合成炉腐蚀机理基础上提出防腐壁温约束条件的合成炉换热面积设计方法。
This paper provides synthesizer's heat exchanger area design method of additive mothballing wall temperature bondage condition in analysed corrosion mechanism of hydrogen chloride synthesizer.
冷却池所需要的面积，可以根据具体的气候条件加以估算。
The area required for a cooling pond can be estimated for the appropriate climatic condition.
本文简述采用弹性膜片法测定织物的胀破强力时，试验面积、试验条件和设备仪器等因素对织物胀破强力的影响。
The paper analyse the influence of test area, test condition and apparatus on result while using Hydraulic method for determining fabrics' bursting strength.
针对膜面培养方法可以方便地模拟红曲霉固态发酵过程，在实验获得红曲霉生长规律的前提下，研究了界面面积等条件对菌体生长和产物生成的影响。
According to the method of the interface culture, which can simulate the solid-fermentation of Monascus conveniently, the influence of different conditions such as interface area etc.
首都国际机场停车楼基坑面积大，深度深，地质条件复杂，地下水位较高。
The foundation pit for the parking building of the capital Airport has a large area, a profound depth, complex geological conditions and rather high ground water level.
结果表明，与圆形、方形活塞的辐射远场相比，在声波频率、活塞面积相同条件下，六边形活塞声源的辐射远场相对比较均匀。
Through comparison, it shows that at the same value of frequency and size, the far field of hexagonal piston is more uniform than that of circular piston.
甘肃省陇西县有着适宜马铃薯生长的优越条件，种植面积大、加工能力强，马铃薯产业在全县农业生产中占有举足轻重的地位。
There are superior conditions, including wide cultivating areas and strong process ability to cultivate potato in LongXi county of GanSu province, and the potato industry plays an important rol.
近年来，由于气候条件的变化，青海湖水位呈下降趋势，水域面积逐年缩小。
The water level of Qinghai Lake descends and its water area reduces in recent years owing to the climate changing.
研究提示临床超声诊断瓣膜返流时，在返流速度范围较小的条件下，彩色多普勒返流面积具有一定半定量诊断意义；
The study indicated that in the clinical application of color Doppler valve regurgitation, color Doppler jet area has a certain semiquantitative value with a small range of jet velocity.
由变幅杆大端直径、放大倍数、面积系数等已知条件，按照变幅杆设计理论对超声振动系统中的变幅杆进行设计；
According to the designing theory of amplitude amplifier pole, it could be designed by big end diameter, magnification, area index and other parameters.
之后在器件的实际工作条件下，确立了以单位面积输出最大功率为原则对器件的几何尺寸进行了优化；
The maximum output power at the unit area was established as the principle to optimize the physical dimension of the device.
在一定的条件下，复杂形体的目标平均雷达截面积近似地由局部反射区域平均雷达截面积的算术和来确定。
Under the certain conditions, the average RCS of targets with complex shape are generally subject to the arithmetic sum of the mean RCS by local reflection area.
大面积种植林草，既改善生态环境，又改善农牧业生产条件，提高了农业综合生产能力。
Tree and grass should be planted in large area, which improve herd and agriculture condition.
结果表明，小流域坝系实现相对稳定，其淤地面积虽是最基本条件之一，但不是唯一的条件。
The results show that the silted area is one of the basic conditions, but not the sole condition.
结果表明，小流域坝系实现相对稳定，其淤地面积虽是最基本条件之一，但不是唯一的条件。
The results show that the silted area is one of the basic conditions, but not the sole condition.
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