This is known as the replacement level.
这就是人口更替水平。
One study showed that, on average, the number of children German women want is just 1.75, far below the replacement level.
一项研究表明，德国妇女想要的孩子的数量平均只有1.75，远低于更替水平。
One study showed that, on average, the number of children German women want is just1.75, far below the replacement level.
一项研究表明，德国妇女想要的孩子的数量平均只有1.75，远低于更替水平。
The total fertility rate had been 5.8 in 1950, he notes, and had declined sharply to 2.3 by 1980, just above replacement level.
他解释说，1950年总生育率为5.8，而1980年巨幅下降至2.3，略微高于人口更替水平的底线。
The CASS study calls for a "prompt" change of policy to get the fertility rate up to around the "replacement level" of 2.1.
社科院研究号召一个“刺激”性政策改变来使生育率提升到2.1。
From fertility that is almost as high as one can get to below replacement level in 22 years: social change can hardly happen faster.
花了22年将生育率降到等值更换水平，我们不得不说没有比这个更快的社会变革了。
The fertility rate is the number of children a woman can expect during her lifetime; 2.1 is the replacement level, the point at which the population stabilises.
人口出生率是指女性一生预期生养的儿童数目；2.1是更替水平，人口在这一点上保持稳定。
The odd ones out are America and Britain, which both have lots of women at work and fertility rates close to replacement level (with immigration making up the rest).
美国和英国则是例外，它们都有大量工作妇女，且生育率接近替代水平（不足部分有移民补充）。
Results show that the ratio of hardness of matrix to that of interface transition zone decreases with the increase of cement replacement level by blast furnace slag;
试验结果显示：随矿渣取代水泥质量分数的增加，基体与界面过渡区之间压痕硬度的差异减少；
Here, countries have escaped the fertility trap and the childbearing rate is around 1.8-not high, but higher than it was, and, in some cases, reaching the magic replacement level.
这里的国家逃离了生育陷阱，生育率大约1.8——不高，但已今非昔比，而且有时候达到了神奇的更替水平。
Fertility starts to drop at an annual income per person of $1, 000-2, 000 and falls until it hits the replacement level at an income per head of $4, 000-10, 000 a year (see chart 2).
人均年收入到1000至2000美元时，生育率开始降低，收入到4000至10000时，生育率降到生育等值更换水平（见图表2）。
So for three decades, fertility rates have mostly been below the “replacement” level—of just over 2.0 in rich countries.
因此在30年内，有大部分时期，生育率都低于“置换”水平——在发达国家刚超过2.0。
That number, the so-called replacement rate, is usually taken to be the level at which the population eventually stops growing.
1被称作是替换率，这通常被作为人口最终会停止增长的生育率水平。
The move to replacement-level fertility is one of the most dramatic social changes in history.
人口趋向生育等值替换水平是历史最有戏剧性的社会变化。
The reason is that widening replacement-level fertility means population growth is slowing down anyway.
理由是生育等值交换水平的扩展表明人口增长不论怎样还是在减速。
The key bit is the top-level extension element x:wsbuffer which provides a stock of blank character content to be used in the replacement operation.
关键是顶层的扩展元素x:wsbuffer，它提供了替换操作中所使用的空白字符内容。
Linux also supports protocols such as the Stream Control Transmission protocol (SCTP), which provides many advanced features above TCP (as a replacement transport level protocol).
Linux也可以支持诸如流控制传输协议(SCTP)之类的协议，它提供了很多比tcp更高级的特性(是传输层协议的接替者)。
This article discusses the concept of the low fertility and calculates the value of the current replacement-level fertility in China.
本文讨论了低生育水平的内涵，计算了目前中国更替水平的数值。
So for three decades, fertility rates have mostly been below the "replacement" level—of just over 2.0 in rich countries.
因此在30年内，有大部分时期，生育率都低于“置换”水平——在发达国家刚超过2.0。
Replacement rate — The level of total fertility that is compatible with a stationary population.
替换率——用来协调静止人口的总出生率级别。
Remember: The Honor Level system is an extension of your classroom discipline system, not a replacement for it.
请牢记：荣誉等级制度是你的课堂纪律体系的延伸，并不能替代它。
Guiding electricity prices back to a rational level by introducing ladder-type pricing can also promote the replacement of energy in a rational manner, thus saving energy and reducing emissions.
推行阶梯电价，使电价逐渐回归合理水平还能促进能源的合理替代，起到节能减排的作用。
Conclusion the detection of estrin level can provide theoretical reference for the clinical hormone replacement therapy.
结论雌激素的检测可以为临床的激素替代疗法提供理论参考。
Objective to investigate the effects of estrogen replacement therapy on the serum nitric oxide and endothelin-1 level of ovariectomized rat.
目的观察雌激素替代治疗对去卵巢大鼠血清一氧化氮和内皮素水平的影响。
The result is when we use IBDU-1 replacement of bean grains at 18% level, the milk yield, milk fat, albumen, lactose has markedly increased.
结果表明，当以IBDU-1替代奶牛日粮精料中18%豆粕时，奶牛日产奶量、乳脂、蛋白、乳糖、干物质均较对照组有明显提高。
The replacement schedule of the service personnel provided by Party B is as follows: for the service personnel of Manager and Leader level, Party B shall replace within 15 days;
乙方服务人员更换时间如下：Manager和Leader等级的服务人员更换需求，乙方需要在15天内更换；
This article analyses the factors which affect the replacement plan of oilfield storage tanks briefly, introduces fuzzy level analysis method and its basic steps.
本文分析了影响油田储油罐更换规划的因素，简要介绍了模糊层次分析法(FAHP法)及其基本步骤。
Friedman will stay in place until a replacement is found, and said in a statement: "I believe it is an appropriate time to introduce new leadership to take the company to the next level."
弗里德曼将留在地方，直至更换发现，并在一份声明中说：“我相信这是一个适当的时机推出新的领导人采取该公司一个新的水平。”
Friedman will stay in place until a replacement is found, and said in a statement: "I believe it is an appropriate time to introduce new leadership to take the company to the next level."
弗里德曼将留在地方，直至更换发现，并在一份声明中说：“我相信这是一个适当的时机推出新的领导人采取该公司一个新的水平。”
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