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。
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）。
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 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。
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。
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。
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。
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）。
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。
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。
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。
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。
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。
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。
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。
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；
Taking the practical production into consideration, the superiority of the replacement of displacement-type float liquid level gauge by torsion-type float liquid level gauge is analysed.
文中结合生产实际，分析了将位移式浮筒液位计更改为扭力式浮筒液位计优越性。
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 BMC and BD had significant correlations with duration of disease, thyroid enlargement, exophthalmos, PTH level and thyroxin replacement.
BMC和BD与病程、甲状腺肿、突眼及应用甲状腺素治疗呈相关关系。
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。
We have to recognize however that the responses that we get with replacement of GLP may vary depending on the level of response.
然而我们必须认识到，取代GLP产生的反应可能随着反应程度变化很大。
If the leased vehicle in use on machine fault, traffic accident and stop, I will provide the same level of replacement vehicles.
如租赁车辆在使用途中机器故障，交通事故而停驶，我公司将提供同档次替代车辆使用。
Objective To investigate the influence of serum estradiol level on timing of embryo transfer and pregnancy outcome in hormone replacement-frozen embryo transfer cycles.
目的探讨激素替代—冻融胚胎移植周期中，血清雌激素水平对于胚胎移植时机的选择以及妊娠结局的影响。
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；
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；
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