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fertility rates
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  受精率
     The fertility rates of the semina with diluents-Ⅰ, Ⅱ, Ⅲ and fresh semen were 52.4%, 45.3%, 20.4% and 71.7% respectively.
     稀释精液Ⅰ、Ⅱ、Ⅲ及原精输精后的受精率分别为52.4%,45.3%,20.4%,71.7%.
短句来源
     the fertility rates of washed 2 or 3 times are 36.1% and 43.6% respectively。
     2次或3次清洗的精子受精率分别达36.1%和43.65。
短句来源
     The fertility rates after acupuncture (66.2%) were obviously higher than that before acupuncture (40.2%,P<0.01).
     针刺治疗后行ICSI治疗的受精率 ( 6 6 2 % )明显高于治疗前 ( 40 2 % ,P <0 0 1 )。
短句来源
     The fertility rates of eggs were 90.0%(233/259) and 79.0% |(184/233) respectively, while those of the BPSE-diluted control group were 92.4% (218/236) and 78.5% (197/251).
     以1∶1稀释,在0-5℃保存24小时后输精,BJJX液和BPSE液的蛋受精率分別为92.2%(249/270)及94.8%(220/232)。
短句来源
     Results: (1)Compared with the first polar body position at 6,10,12,1 o’clock, the highest and the lowest fertility rates of the first polar body of gradeⅠwere obtained from the 11 o’clock and 3 o’clock( P=0.002 4, P =0.000 1)respectively.
     结果 Ⅰ级极体在 11点位受精率最高 (P =0 .0 0 2 4 ) ,3点位最低 (P =0 .0 0 01) ;
短句来源
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  生育率
     ON STABILITY THEORY OF POPULATION SYSTEMS AND CRITICAL FERTILITY RATES OF WOMEN
     人口系统的稳定性理论和临界妇女生育率
短句来源
     The women's general and total fertility rates were 88.39‰ and 2.22 , respectively from August, 1993 to July, 1994. The standardized fertility rate (79.00‰) was higher than that in Hubei Province in 1993 (70.39‰) (P<0.05).
     1993.8~ 1994 .7妇女的普通生育率和总和生育率分别为 88.39‰和 2 .2 2。
短句来源
     DISCUSSION ON CRITICAL FERTILITY RATES OF WOMEN IN STABILITY THEORY OF POPULATION SYSTEMS
     人口系统稳定性中临界妇女生育率的探讨
短句来源
     Paying attention to the properties and defects of existing sample data of population, this paper estimated China’s total fertility rates from 1994 to 2004 by revising total fertility rate index, and then discussed causal factors of the index outlined.
     文章针对现有人口抽样数据的特点和缺陷,通过对总和生育率指标的分析和改进,测算了1994~2004年中国的总和生育率,探讨了影响该指标变化的各种因素。
短句来源
     After“the Population Revolution”, the birth rates and the fertility rates have fallen since the middle of the 19~(th) century. Until the middle of the 20th century, they have been near the Replacement Level.
     在发生了相应的“人口革命”后,各国人口出生率和生育率从19世纪中期开始下降,到20世纪中期接近生育更替水平。
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  “fertility rates”译为未确定词的双语例句
     The results showed that the pollen fertility rates of Elymus dahuricus and Hordeum brevisubulatum were 87.1% and 89.2% respectively, the seed sets were 39.4% and 34.8% respectively.
     结果表明,亲本披碱草和野大麦的花粉可育率较高,分别为87.1%和89.2%,开放授粉的自然结实率分别为39.4%和34.8%。
短句来源
     the pollen fertility rates and seed sets of some BC_1 lines were still low, the pollen fertility rate was only 0.3% and seed set was 0;
     BC1代的花粉可育率和结实性有不同程度的恢复和提高,各株系间的花粉可育率和结实率有较大的变异,有的株系花粉可育率和结实率仍很低,花粉可育率只有0.3%,开放授粉不结实;
短句来源
     Results The fertility rates of fresh spermatozoa by in vitro were from 15.1% to 87.9%, and frozen sperm were about 8%-80%, the thawed rates of frozen embryos were from 42.6% to 83.9%, and 17.8% to 51.8% offspring were procreated after morphological normal 2-cell embryos were transferred to the oviducts of pseudopregnant recipient in all strains.
     结果 各品系小鼠新鲜精子的IVF率 15 1%~ 87 9% ,冻融精子的IVF率 8%~ 80 % ; 冷冻胚胎的复苏率4 2 6 %~ 83 9% ;
短句来源
     The fertility rates, implantation rates, clinical pregnancy rates and ongoing pregnancys rates were analyzed. The patients were divided into three groups according to dose of LH and the time used: group A( n - 225), the control group, with FSH≥225 IU/day, LH≤225 IU/day;
     常规方案实施IVF-ET的患者359例,按COH中卵泡刺激素(follicle- stimulating hormone,FSH)和LH的不同用量,以及它们的用药时间分为3组:A组(n=252),FSH≥225 IU/d,且LH ≤225 IU/d(对照组)。
短句来源
     The spike types of 8 plants of B2F1 hybrid ( B1F1 X Chinese spring 5B ) were similar to those of the female parent. The fertility rates were between 8.33-39.12%. The number of chromosomes was between 42-52, with 46 chromosomes in the majority.
     B_2F_1代8个植株,其穗型与母本近似,结实率为8.33—39.12%,染色体数为42—52条,其中以46条染色体的为多。
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  fertility rates
e., age distribution, marital status, and fertility rates), level of education, work force participation, political activity, military service, and access to health care.
      
Negative and significant correlations are seen between fertility rates and the number of women as a percent of the prison population, as well as educational variables.
      
Results indicate that abortion, by reducing unwanted pregnancies and hence fertility rates, has increased the labor force participation rates of females, especially of single black women.
      
However, data on completed fertility rates over more than one generation in so-called traditional societies have been rare.
      
Age-specific fertility rates for Mexico were used to derive the number of low and high-risk pregnant women.
      
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The sperm-rich fraction of boar semen was diluted by ratio of 1:0.5-1. The composition of the semen dilutor was 8% glucose solution 77 ml, glycerin 3 ml and yolk 20ml, The diluted semen went into the prefreezing-equilibration and semen temperature fell from 20-30℃(room temperature)to 10-15℃ in 3-4 hours, then continually fell to 7-9℃ in 1-2 minutes. After prefreezing-equilibration, the pellet-frozen semen was made with a cupric web upon liquid nitrogen and stored in it. The frozen semen was thawed by the "dry-thawing"...

The sperm-rich fraction of boar semen was diluted by ratio of 1:0.5-1. The composition of the semen dilutor was 8% glucose solution 77 ml, glycerin 3 ml and yolk 20ml, The diluted semen went into the prefreezing-equilibration and semen temperature fell from 20-30℃(room temperature)to 10-15℃ in 3-4 hours, then continually fell to 7-9℃ in 1-2 minutes. After prefreezing-equilibration, the pellet-frozen semen was made with a cupric web upon liquid nitrogen and stored in it. The frozen semen was thawed by the "dry-thawing" method and the thawing temperature was 50-60℃ The thawed semen and thawing solution were mixed by ratio of 1:0.5-1. The thawing solution was mainly composed of 5% glucose solution 100ml and 10% Caffeinum Natrio Benzoicum 5ml. When frozen-thawed semen dosage of 15-20ml containing 1-1.5×10~9 motile spermatozoa-was deposited by single or double insemination in every oestruso farrowing rate of 682 sows was 73.75%. The mean litter size of 503 farrowed sows was 10.50. 7 sows were inseminated with the frozen semen stored for 3 years and all were pregnant. Difference of fertility rate of frozen-thawed semen within 4 hours was not significant.

公猪精液浓稠部分按1:0.5~1比例稀释。精液稀释液主要由8%葡萄糖溶液77毫升、甘油3毫升、蛋黄20毫升组成。精液温度从室温20~30℃降至10~15℃,耗时3~4小时,然后从10~15℃降至7~9℃,耗时1~2分钟。降温平衡后,精液用铜筛网在液氮面上制成颗粒冷冻精液并放在液氮中保存。冷冻精液用“干解法”解冻,解冻温度50~60℃,解冻后精液与解冻液以1:0.5~1混合。解冻液主要由5%葡萄糖100毫升、10%胺钠加5毫升组成。每次输精输入已解冻的冷冻精液10~20毫升,内含活精子10~15亿。每发情期输精1次或2次,共配种682头母猪,产仔率73.75%。共有503头母猪产仔,平均每窝仔猪10.50头。其中7头母猪用保存了三年的冷冻精液配种,全部受胎。冷冻精液解冻后四小时内输精,受胎率差异不显著。

In this paper the stability and the asymptotic properties of the population evolution process are considered through the semi-discretization of the continuous population model. We have given the formula of the critical fertility rate of women, and we have shown that the population state is asymptetically stable if the ratio fertility rate is not bigger than the critical fertility rate, and otherwise this state exponentially diverges. Finally, we have obtained the explicit expression of the...

In this paper the stability and the asymptotic properties of the population evolution process are considered through the semi-discretization of the continuous population model. We have given the formula of the critical fertility rate of women, and we have shown that the population state is asymptetically stable if the ratio fertility rate is not bigger than the critical fertility rate, and otherwise this state exponentially diverges. Finally, we have obtained the explicit expression of the stationary population state with the critical fertility rate.

本文通过对连续人口模型半离散化,研究了人口发展过程的稳定性和渐近性质,给出了妇女临界生育率,它与[2]中离散情况下临界生育率公式相一致。证明了当比生育率不超过临界生育率时人口状态渐近稳定,而当超过临界生育率时人口指数发散。

The plant character, fertility rate and chromosome of 49 B1F2 and 8 B2F1 hybrid plants between wheat variety Chinese spring ( 2n = 6x = 42 ) and H. bulbosum ( 2n = 6x = 28 ) were studied.Some segregations were observed in plant type, tiller number, leaf shape, types of both spike and awn as well as fertility rate of 49 hybrid plants in generation B1F2. There were loose and dense spikes, curved and straight awns and erect and bent flag leaves. Tiller numbers of the plants were between 0-35, while fertility rate...

The plant character, fertility rate and chromosome of 49 B1F2 and 8 B2F1 hybrid plants between wheat variety Chinese spring ( 2n = 6x = 42 ) and H. bulbosum ( 2n = 6x = 28 ) were studied.Some segregations were observed in plant type, tiller number, leaf shape, types of both spike and awn as well as fertility rate of 49 hybrid plants in generation B1F2. There were loose and dense spikes, curved and straight awns and erect and bent flag leaves. Tiller numbers of the plants were between 0-35, while fertility rate varied from 0-20%. The number of chromosomes was 48-56 ( 24-28 pairing disomes ) in most pollen mother cells of B1F2 at diakinesis or metaphase Ⅰ. It indicated that in generation B1F2 not only all the genomes of Chinese spring were present, but the pairing disomes of bulbosum chromosomes were retained also. Hence there is high hope of obtaining an alien-addition line of wheat through several generations of selfing and backcrossing.The spike types of 8 plants of B2F1 hybrid ( B1F1 X Chinese spring 5B ) were similar to those of the female parent. The fertility rates were between 8.33-39.12%. The number of chromosomes was between 42-52, with 46 chromosomes in the majority.

对中国春小麦(2n=42)×苏联球茎大麦(2n=28)属间杂种B_1F_2代49个单株和B_2F_1(B_1F_1×中国春5B小麦)8个单株的植株性状、育性和染色体进行了观察。 B_1F_2代49个植株在株型、分蘖数、叶形、穗型、芒型和结实率等性状方面都有一定的分离。穗型有疏和密的分离;芒有钩芒与直芒的分离;旗叶有直与曲的分离;单株分蘖数在0—35个之间;结实率在0—20%之间。在花粉母细胞减数分裂的终变期或中期Ⅰ有24—28个二价体,染色体总数为48—56条,说明在B_1F_2代中除具有中国春全组的染色体外,还保留着成对的球茎大麦的染色体。因此,有希望在后代中选出在小麦染色体组中添加数条球茎大麦染色体的新附加系。 B_2F_1代8个植株,其穗型与母本近似,结实率为8.33—39.12%,染色体数为42—52条,其中以46条染色体的为多。

 
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