食物数量 size of food(0)   “食物数量”译为未确定词的双语例句      when the ratio of the population increase of the spidermite was 0.238, the relationship between the growth of phytoseiid mite (y) and prey/predator (x, i. e. food number) could be expressed directly as the hyperbolic func-tion:1/y=0.8080+0.1148/x.      叶螨增长率为0.238时,植绥螨增长率(y)和释放比(x,即食物数量)之间为双曲线函数,1/3,=0.8080+0.1148/x。 短句来源      Among the preys,those of 1-10 mm length were ingested with the highest amount.      食物中以个体长为1~10 mm食物数量频率最高; 短句来源      This paper reports the results of observations and experiment about the behavior, food and control of diseases on a finless porpoise in the poll.      本文报道了对饲养下的长江江豚的行为、食物数量的观察和疾病治疗实验结果。 短句来源      There are fairly significance (P<0.001) differences on the foraging degree,food's depth,number and weight of the bird among three sample lines.      ②在由北向南 3条样线之间 ,白头鹤的取食强度、食物埋藏深度、食物数量和食物重量差异极显著 (P<0 0 0 1)。 短句来源      The total food amounts, animal food amounts and retinol equivalent consumed by children were less in kindergarten than in family.      与家中膳食相比较 ,儿童在幼儿园摄取的食物总量、动物性食物数量以及视黄醇当量均明显偏少。 短句来源 更多          相似匹配句对      Food of Americans      美式食物 短句来源      unfit food      食物禁忌 短句来源      The factors which effected the growth of the amourts of the species groups were food and climate.      影响喜鹊种群数量增长的因素是食物和气候。 短句来源      The method of Food-Entrap can be used in investigation on the relative quantity of some animals.      食物-陷阱法可用于部分动物的相对数量的调查。 短句来源      Analysis on Quantity Efficiency      浅析数量效率 短句来源 查询“食物数量”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   size of food Average size of food organisms eaten increased for both species with growth, because of selection by the larvae; the average size of copepodites and copepods in digestive tracts increased at a faste rate in H. 例句来源       Differences in the time-activity budgets of the species were related to body mass and size of food particles. 例句来源       The differences in the degree of infestation of Aesculus hippocastanum by the horse chestnut leafminer in the two towns are interpreted as a result of the differences in the size of food resources. 例句来源       In both situations, when food was presented in only 1 place, the food carrying behavior increased as the size of food increased from 0.045 to 1-g. 例句来源       The effects of the size of food particles on the uptake of an artificial diet by perch (Perca fluviatilis) larvae, reared in tanks for 15 days following hatching, were studied. 例句来源       更多                    1. Paired adults of Trombicula akamushi var. deliensis reared in an environmentof RH 100% and 28±1℃ with sufficient food, all except a few, exhibit normal repro-ductive power. In the first year after emergence, the adult females lay 0--12 eggs dailywithout manifestation of any periodicity. Sometimes under the same physical environ-ment, the egg-laying capacity may far exceed the amount of food given. 2. An atmospheric condition of RH 100% and with sufficient amount of food,13℃ and 35℃ are probably the lower...             (一)本文首次用配对的地里红恙虫成虫,在相对湿度100％和温度28±1℃时,在规定的营养状况下,比较长期地观察成虫的产卵。根据每天记录的数据统计分析的结果说明: 1.高营养组大部分的成虫被认为具有正常的或旺盛的生殖能力。这种生殖力在一年中一直保持稳定,没有周期性的变化,因此,每对成虫每一季的产卵数量差别不大。 2.高营养组中还有少数的成虫被认为生殖能力不正常或很不正常。作者认为在自然界这样的成虫也是有的,但由于数量不多,当考虑一个地区恙虫卵数量的消长时,恙虫本身的生殖力问题,可以被忽视而不至于影响统计结果。 3.在相同的生活条件下,高营养组一对成虫一年的平均产卵数大约等于低营养组的66倍,但高营养组供应的食物量只等于低营养组的6倍。说明在某一限度之内,产卵数量的增长可能大大地超过食物数量的增长。 (二)在几种恒温及室温的环境中,采用多成虫混合饲养的方法,比较大批和长期地观察地里红恙虫的幼虫孵出并计算产卵数量,显示: 1.如果成虫羽化后就生活在恒温和相对湿度100％的恒湿环境中,在一定的营养状况下,35℃与13℃左右可能是地里红... 文摘来源          Cause's experiment with Paremecim caudatum is repeated on five levels of food quantity, The viable count procedure is adopted and values of r in logistic equation are computed by optimization method of enumeration. As a result, the values of r increase progressively from 0.6342 to 1,437 with food quantity, The conjecture that r never change with rate of renewing resoures by Caughley is incorrect. This experimental fact against the prevalent viewpoint about r in logistic model shows that r is maximal rate of...             以五种食物供量重复Gause的草履虫实验。采用活体计数草履虫,逻辑斯谛方程中的r由枚举优选法计算。结果,r值随食物供量由0.6342(1/日)至1.437(1/日)逐渐增大。因而,Caughley关于r不随资源更新率变化的推断是不正确的。这一实验事实与流行的观点相反,说明逻辑斯谛方程中的参数r不是内禀增长率,而是对于特定食物数量的最大增长率。通常所用的目标函数不适合逻辑斯谛曲线,提出一种新的目标函数 文摘来源          The predacious efficiency of the phytoseiid mite, A. pseudolongispinosus on thespider mite, T. cinnabarinus decreased with the increasing rate of population of T.cin-nabarinus. Thus, the release ratio (predator/prey) bad to be raised in order to con-trol the prey density. when the release ratio could take control of the popolationgrowth of the spidermite, further increase of the ratio had little effect on the po-pulation growth of the prey. when the ratio of the population increase of the spidermite was 0.2...             随朱砂叶螨种群增长率增加,拟长毛钝绥螨对朱砂叶螨的捕食效率减小,此时提高释放比(捕食者/被食者)能控制叶螨密度。当某一释放比已控制叶螨种群时,进一步提高释放比,对已控制的增长率影响不大。叶螨增长率为0.238时,植绥螨增长率(y)和释放比(x,即食物数量)之间为双曲线函数,1/3,=0.8080+0.1148/x。 文摘来源   << 更多相关文摘         相关查询: 食物 数量 食物组成 数量营销 数量经济学 合理数量 食物颗粒 数量效果 水资源数量 食物限制 数量竞争 食物消费  对查询结果不满意

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