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two sexes
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  两性
    It was found that the side of a whorl of which the ridge count was enumerated was highly correlated with the type of orientation of whorl pattern, association analysis indicating p<0.001. The a-b TRC was 38.05±4.63 in males, and 38.05±4.54 in females, being 38.05±4.58 in average. There is no significant difference between two sexes (p> 0.1).
    a—b纹嵴数在男性为38.05±4.63,女性为38.05±4.54,平均38.05±4.58,两性间无显著差别(P>0.1)。
短句来源
    There were some differences in the change of fat body coefficient and genital gland coefficient of the two sexes.
    脂肪体系数和生殖腺系数的变化均表现两性差异。
短句来源
    In the pig resource population, the average informative meiosis (IM) was 217.4 (44–316), and the average linkage map length between the two sexes on the five chromosomes were 172.3 cM (SSC4), 168.7 cM (SSC6), 191.7 cM (SSC7), 197.3 cM (SSC8), and 178.3 cM (SSC13).
    结果表明大多数微卫星标记位点表现为中高度杂合性。 在资源群体中,平均有信息减数分裂数是217.4(44-316),而各染色体上两性平均图谱的长度分别是:172.3cM(SSC4),168.7cM(SSC6),191.7cM(SSC7),197.3cM(SSC8),178.3cM(SSC13)。
短句来源
    Assuming a balanced sex ratio of juveniles at brood break-up, we calculated a theoretical sex ratio using a two deterministic demographic model with two sexes and two age class (immature <10 months old, adult >10 months old). The theoretical sex ratio was either 1.23 or 1.29, depending on the model used.
    在假设窝扩散时幼体的性比平衡的前提下,通过两性和两个年龄组(幼体,<10月龄的个体;成体>10月龄的个体)的确定性统计模型,得到的理论性比为1.22(即未配对的雄性占18%),这一结果与实际观测的性比十分接近。
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  “two sexes”译为未确定词的双语例句
    The normal values of AFSSC and AFSC are 27. 9 0? 9.6 0 and 17.4 ~? 6.2 0 but they have no significant difference between the two sexes statistically.
    股骨下端干上髁角、干髁角的正常值范围分别为:27.9~0±9.6~0、17.4~0±6.2~0性别间差异无显著性意义(p>0.05)。
短句来源
    There is a significant difference between two sexes (p < 0.001).
    斗型纹FRC值的计数侧别,与此斗的偏向密切相关(P<0.001)。
短句来源
    In this article, the formation, length, caliber, tributary, valve and variation of the axillary veins were observed and measured in 120 upper extremities of 60 adult cadavers. The distribution of cadavers between two sexes was equal.
    本文观测了60例成人尸体(男、女各半)的120侧腋静脉的合成、长度、管径、属支、瓣膜及变异等。
短句来源
    There is no siguificant difference in positive rate of rotavirus between two sexes.
    在不同性别间RV检出率没有显著差异。
短句来源
    Comparisons between the two sexes and with the average of Han nationality of 1979 in China were made. In addition, we compared our data with those of Japanese.
    文中比较了男女间的差异,并与汉族1979年均值和日本人的数据进行了比较。
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  two sexes
We studied female copulation solicitation in the pied flycatcher Ficedula hypoleuca in aviaries where the two sexes were physically separated by nylon netting so that the males could not mount the females.
      
Fat physiology and biochemistry differ between the two sexes.
      
Lung cancer is the most frequent cancer worldwide, accounting for about 12% of all new cancer diagnoses in the two sexes combined.
      
Increases are similar in the two sexes and have followed a clear cohort pattern, paralleling changes in smoking habits and cigarette design more than diagnostic advances.
      
The pheromone of Trogoderma granarium males was subjected to two bioassays intended to examine its effect on the two sexes of the species.
      
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Observations on the flight duration and wingbeat frequency were made in thelaboratory at various constant temperatures and 65--75% relative humidity. The mothsused consisted of individuals emerged from pupae collected from the field and rearedin insectary. The results obtained indicated that some individuals of the moths can fly continouslyat 17℃ for 36 hours. Fig. 4 But the duration of flight varied with the insect age. In themoths one day after emergence it was shorter as campared with those of older ones.The...

Observations on the flight duration and wingbeat frequency were made in thelaboratory at various constant temperatures and 65--75% relative humidity. The mothsused consisted of individuals emerged from pupae collected from the field and rearedin insectary. The results obtained indicated that some individuals of the moths can fly continouslyat 17℃ for 36 hours. Fig. 4 But the duration of flight varied with the insect age. In themoths one day after emergence it was shorter as campared with those of older ones.The longest duration has been shown by those moths aged 3--4 days. Most of thefemale moths 5 days after emergence had fully developed ovaries, and their flight dura-tion dropped down rapidly. This fact suggests that the period before sexual maturationwould be the optimal time for the insects to carry out long distance migration. Nutrition and environmental temperature would influence the flight ability of themoths; the flight duration of the moths under starvation condition decreased apparently;and at lower temperatures it will be prolonged (table 2, 3). The wingbeat frequency varies with the age of moths, as shown in Figure 1. It isworth while to note that the difference in frequency of the two sexes increases with age,and fluctuates slightly with temperature within the range of 25--30℃, beyond which theinfluence of temperature on wingbeat frequency becomes apparent. Light or sound stimulation may affect the flying behaviour of the armyworm moths.Flash light or sound may initiate the flight of the resting moths (Fig. 5A, 6A) or causethe wingbeat frequency of flying moths to increase temporarily (Fig. 5B, 6B), with afactor of 6% for light stimulus and 8% for sound stimulus. They also cause the ampli-tude of wingbeat to increase temperarily (Fig. 7). The latent period of these responsesdre 0.08 and 0.09 second for light and sound stimulation respectively.

本文报导用记纹方法测定粘虫蛾飞翔持续时间和振翅频率所获得的结果。 粘虫蛾在羽化展翅后就能飞翔,随后,飞翔能力依蛾龄增长逐渐增加,至羽化后第3、4天达最强,此时室内饲养的成虫,在24小时内平均累积的飞翔时间达10.8小时,野外挖回的蛹羽化的成虫达20.6小时。羽化后5天,由于体内卵发育成熟,飞翔能力又逐渐降低。相同蛾龄的粘虫,飞翔持续时间可能受环境温度和营养条件的影响,环境温度较低时飞翔持续时间较长,饥饿显著地降低飞翔时间。长时间的记录表明,有些粘虫蛾在48小时内能累积飞翔30-40小时,若干个体能连续地飞翔36小时,这是迄今在实验条件下昆虫所能达到的最长飞翔时间。 粘虫蛾的振翅频率,雄虫较雌虫高。两性振翅频率都依蛾龄而变化,从羽化开始至第3天,随蛾龄而增加,3-12天中,雄蛾变化较小,雌蛾在第7天后则显著地降低。振翅频率依温度升降而变化,其关系曲线呈抛物线型。 突然的闪光刺激或声音刺激,可临时增加振翅频率和振幅,亦可使未飞翔的粘虫蛾开始飞翔。

The study on sex control in T. mossambica has been carried out since 1976. The preliminary results of our study are briefly described as follows.1. The fish treated with male hormone (MT30) for 82 days at its larva stage developed into 97.0% males. On the other hand, the fish treated with female hormone (BEso) for 228 days developed into 94.9% females, with the result that the two sex hormones can exercise control over physiological sexuality of the fish in both directions.2. On the basis of the...

The study on sex control in T. mossambica has been carried out since 1976. The preliminary results of our study are briefly described as follows.1. The fish treated with male hormone (MT30) for 82 days at its larva stage developed into 97.0% males. On the other hand, the fish treated with female hormone (BEso) for 228 days developed into 94.9% females, with the result that the two sex hormones can exercise control over physiological sexuality of the fish in both directions.2. On the basis of the above experiment, we further completed the genetic control of monosex females and obtained 98.5% (97.0-100%) daughters by × . Through the approach of mating of × , we have attained 73.4-74.5% sons, indicating the existence of YY males.3. Fish treated with sex hormones had normal reproductive function. The use of sex hormones can not alter genotype of sex, but only phenotype, i.e. physiological type. The genetic determination for sex in T. mossambica is of XX -XY type.4. In order to better guide the production of monosex populations, the genetic and physiological informations on sex control in some fishes were analysed, and the concept of a genetic-physiological type was introduced. The theory of "three line" combination for artifical control of sex in fishes is suggested.

为了利用雌、雄鱼之间生长的差异性提高鱼产量,以莫桑比克罗非鱼作材料,对鱼类性别进行了人工控制试验。结果表明:雌性激素(BE_(50))和雄性激素(ML_(30))能有效地控制当代鱼类生理上性别的相互转化;同时以生理遗传学的原理,通过遗传上♀×♀、♂×♂的特殊配种和“三系”配套的途径进一步控制了鱼类遗传上的性别,并证明莫桑比克罗非鱼的性别遗传确定为XX♀-XY♂型。

This paper attempts to develop a mathematical model of optimal su-stainable yield of a reaewable population..of. two sexes. Harvesting policies involving the removal of before or after reproduction are considered . It is shown that the harvesting policg which maximizes the yield is one in which each class of the population is either completely harvested or not harvested at all, with at most one exceptional class of the female. At the end, an example is given to illustrate this model.

本文把Beddington和Taylor的方法推广到生物种群雌雄繁殖的矩阵模型上,证明有一个既使生物种群保持可以复原的水平,又使收获量达到最优的收获决策存在。这就是:对雄性个体在一定年龄级以前全部保留,此年龄级以后全部收获;对雌性个体则除一个年龄级为部份收获外,其余也应在某年龄级以前全部保留,此年龄级以后全部收获。本文还分别就繁殖前和繁殖后两种不同阶段的收获情况,提出确定收获年龄和实际计算最优方案的方法,最后举例说明计算步骤。

 
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