reproduction rate
英 [ˌriːprəˈdʌkʃn reɪt]
美 [ˌriːprəˈdʌkʃn reɪt]
网络 繁殖率; 再生率; 复制率
双语例句
- Her symbol was the rabbit because of the animals high reproduction rate.
因为兔子的高繁殖率，便成为了Eostra之神的标志。 - The reproduction rate of the aphid is influenced by nutrition.
蚜虫的繁殖率受到营养的影响。 - Pandasare threatened by a low reproduction rate.
熊猫的生存受到低生育率的威胁。 - Improvement of Reproduction Rate by Using Estrus Synchronization
应用同期发情技术提高肉牛繁殖率的试验 - Campbell hamsters that have a fast reproduction rate were fed for two years with ordinary soya beans, which are widely used in agriculture and those contain different percentages of GM organisms.
试验中，具有快速繁殖能力的坎贝尔仓鼠被连续喂养两年在农业生产中普及了的含有转基因有机物的大豆。 - The reproduction rate is the rate at which a population produces new members by birth.
生殖率即一个群体通过生育来繁殖新成员的比率。 - According to the data of population census, this thesis investigated the birth rate of the Tus 'women total, the brith level of low age and reproduction rate of population.
文章依据人口普查数据，对土族妇女的总和生育率、孩次别生育率、低年龄生育率及人口再生产率进行了考察。 - In this paper, the effect of lignosulfonates on bacteria reproduction rate in recirculated cooling ( water) has been studied by plate counting method.
通过平皿计数法研究了不同类型木质素磺酸盐及其组分对循环冷却水中细菌繁殖速度的影响。 - The investigating results show that fabricius has characteristics of easy raising, short period of reproduction, high reproduction rate.
调查结果表明蠋敌具有易饲养，繁殖周期短，繁殖率高，食量大，食性杂等优点。 - The present policy should aim to improve the education for the farmers, reduce the reproduction rate, increase manpower capital and provide necessary conditions.
中国现阶段促进二元结构转化的政策，应以提高农业人口的受教育程度为重点，要有利于农村生育率的下降和人力资本的提高，为其创造出需求条件。 - Manpower Capital, Reproduction Rate and the Transformation of the Dual Economic Structure
人力资本、生育率与二元经济结构转化 - The treatment in which water chestnut juice was added into the medium of fruit fly every day increased the reproduction rate of the adult, improved the development of larvae and increased the body weight and length.
在正常果蝇培养基上每日添加荸荠汁，显著提高果蝇繁殖率，加速幼虫发育，增加成虫体重和身长。 - Sprouting is also the type of regeneration but is of weak capacity, with the net reproduction rate R o < 1.0, intrinsic increase rate r m < 0, which indicates the population will decrease.
也可通过萌蘖繁殖进行天然更新，但更新能力较弱，种群净生殖率Ro＜1.0，内禀增长能力rm＜0，种群数量将递减。 - It is proposed that the concept and the formula of transmission capacity i.e. basic transmission velocity of schistosomiasis from the concept of basic reproduction rate.
从基本繁殖率概念中提出了血吸虫病传播能量，即基本传播速率的概念和算式； - A group of equations was established in accordance with herd structure dynamics. These equations were used to obtain the herd structure and offtake rate. Further analysis showed that herd offtake rate is related with livestock offtake age and female reproduction rate.
建立了畜群结构满足的方程组，通过解方程组得到畜群结构与畜群出栏率，进一步分析得出畜群出栏率与出栏畜龄P和母畜产羔率r有关。 - The suspended silt affected population survival rate, rather than its reproduction rate.
悬沙对轮虫种群的存活率（lx）有影响，而对种群的繁殖率（mx）无显著影响。 - Through calculating the I and IPC values of all the generations and analysis on the factors, the results showed that the racial group control index of mulberry white caterpillar in the natural environment was low, while the reproduction rate and viability were high.
通过计算各世代I值和IPC值，并进行组分分析证明，在自然环境中桑蟥的种群控制指数较低，繁殖率、生命率很强。 - The results indicated that in areas where Anopheles sinensis was the only vector, when the man biting rate was less than 6.7 or the vectorial capacity less than 0.44, it was possible that the basic reproduction rate would be below the critical value 1.0.
结果表明在以中华按蚊为唯一媒介地区，当叮人率低于6.7或媒介能量低于0.44时，基本繁殖率很可能已降到临界值1.0以下。 - The reproduction rate was more than 2.36. The culture density of about 3 cluster a bottle with 3 plants a cluster expressed obvious community effect and raised the differentiation rate.
以每丛3株左右，每瓶接3丛的接种密度，表现出显著的群体效应，可提高分化率。 - All parameters in the important concept-basic reproduction rate provide science evidence for malaria epidemiologic research and disease control and prevention.
其基本繁殖率这一重要概念中的各项参数，为疟疾的流行病学调查和制订预防、控制措施提供了依据。 - It is pointed out that to increase the economic benefit from the herd, the offtake rate must be increased, and to do this the livestock offtake age should be reduced and female reproduction rate increased.
指出提高畜群的经济效益，必须提高畜群出栏率，降低出栏畜龄和提高母畜产羔率。 - The effective reproduction rate and living rate of snails decreased with the increase of altitude and statistical significance exists. 3.
钉螺的有效繁殖率和存活率随高程上升而下降的趋势且差异较显著。 - The silkworm moderate body, short growth cycle, the congenital advantage of the high reproduction rate, that makes it is an important model organism of Lepidoptera insects.
家蚕适中的身型、较短的生长周期、较高的繁殖率以及良好的研究基础等优势，使之成为鳞翅目昆虫重要的模式生物。 - Secondly, the Verb-object clutch should be listed as a grammar point, and should systematically and comprehensively introduce its own peculiarities and common extended forms, increase the reproduction rate of the key verb-object clutch in the textbooks.
其次，要将动宾式离合词作为一个语法点列出，而且应该系统、全面地介绍其特殊性和常用扩展形式，适当提高重点动宾式离合词在教材中的重现率。 - Traditional cultivation depends on minute reproduction, but the reproduction cycle is long and reproduction rate is low, which can not meet the needs of large scale production.
传统栽培靠分株繁殖，繁殖周期长，且繁殖率低，难以满足规模化生产的需要。