查询词典 feeding

The feeding and excretion of three little fishes (Hemiculter. leucisculus, Tilapia. aurea and Cirrhinus. molitorelld) was studied and their effect on water quality of Qiankeng reservoir in Shenzhen City Around the topdown effect of fish was also studied. Based on the analysis of their stomach contents, their diet composition was assayed. The three fishes" feeding rhythm in cage and their rate of digestion indoor were looked into, and their daily ration was estimated through the method of daily average fullness index. Using the spectrophotometer, the content of chlorophyll a in the stomach was measured, and the feasibility of taking the chlorophyll a as an index of measuring the feeding of fish on phytoplankton was studied. Adopting the national standard method, the effect of the three fishes" excretion on total nitrogen, total phosphorus, CODMn, pH, turbidity and conductivity coefficient was surveyed. The effect of feeding and excretion offish on water quality was discussed and the results revealed as follows:H.

围绕鱼类的下行效应，本文以深圳茜坑水库三种小型鱼类Hemiculter leucisculus罗非鱼Tilapia.aurea和鲮鱼Cirrhmus.molitorella为研究对象，以胃含物分析为基础，分析了三种鱼类的食物组成；调查了网箱中自然状态下三种鱼的摄食节律，在室内调查了三种鱼的食物消化速率，运用日平均饱满指数法计算出三种鱼的日粮；采用分光光度法测定了鱼体肠叶绿素含量，探讨了叶绿素作为鱼类对浮游植物摄食量衡量指标的可行性；采用国家标准的水质测量方法，测定了鱼类排泄对总氮、总磷、高锰酸盐指数、pH、浊度和电导率的影响量。

Methods Forty-five female rabbits were randomly divided into 5 groups, there are 9 in each: group A: normal control; group B: sham operation + cholesterol feeding; group C: OVX + cholesterol feeding; group D: OVX + cholesterol feeding + estradiol benzoate; group E: OVX + cholesterol feeding + estradiol valerate.

将45只3月龄雌兔随机分为5组，每组9只。A组为正常对照，B组为假手术+胆固醇饮食，C组为OVX+胆固醇饮食，D组为OVX+胆固醇饮食+苯甲酸雌二醇，E组为OVX+胆固醇饮食+戊酸雌二醇。

The energy loss through feces was 0.077C (C: food consumption, KJ/d) and the energy loss through excretion was 0.052C at maximum feeding rate. In that the ratios of F and U to C were low in fish energy budget equation (Cui et al., 1997), the energy loss through feces at optimum feeding rate could be estimated by 0.077C〓(C〓: the optimum feeding rate) and the energy loss through excretion at optimum feeding rate could be estimated by 0.052C〓. The relationship between total energy content for immature gibel carp and body weight was lnE=1. 476+1. 127lnW.

最大摄食率条件下，异育银鲫排粪能损失：F=0.077C，排泄能损失：U=0.052C；由于排粪能及排泄能在能量收支方程中所占比例不大（崔奕波等，1997），最适摄食率条件下的排粪能损失可估计为F〓=0.077C〓（C〓：最适摄食能，KJ/d），排泄能损失可估计为U〓=0.052C〓；性未成熟异育银鲫的能量含量与体重的关系为：lnE=1.476+1.127lnW

Based on the energy budget equation, the optimum feeding rate for gibel carp was C〓=G〓+F〓+U〓+R〓(G〓, maximum growth energy, KJ/d; F〓, fecal energy at the optimum feeding rate, KJ/d; U〓, excretion energy at the optimum feeding rate, KJ/d; R〓, metabolism energy at the optimum feeding rate), and F〓=0.077C〓, U〓=0.052C〓 and R〓=k〓 and k is adjusted coefficient.

根据能量收支方程，异育银鲫的最适摄食率可表述为：C〓=G〓+F〓+U〓+R〓（G〓：最大摄食率条件下的生长能，KJ/d；F〓：最适摄食率条件下的排粪能，KJ/d；U〓：最适摄食率条件下的排泄能，KJ/d；R〓：最适摄食率条件下的代谢能，KJ/d），其中F〓=0.077C〓，U〓=0.052C〓，R〓=k*，k为校正系数。

The relationship between standard metabolism (R〓, mgO〓/h/fish), wet weight and temperature was: lnRs=0.830+0.021T+0.670lnW in short term respiration trials. The relationship between feeding metabolism rate (R〓, mgO〓/g/d) and feeding rate was R〓=0.264C+36. 740 determined in short term respiration trials. The relationship between feeding metabolism , body weight and temperature for gibel carp at maximum feeding rate was R〓=-6. 237+0.697lnW+1. 940lnT.

异育银鲫标准代谢（R〓，mgO〓/h·fish）与水温及体重的关系可表述为：lnR〓=-0.830+0.021T+0.670lnW；异育银鲫摄食代谢率（R〓，mgO〓/g/d）与摄食率的关系可表述为：R〓=0.264C+36.740；结合以上两个模型进行推测，最大摄食率条件下异育银鲫摄食代谢与水温及体重的关系可表述为：R〓=-6.237+0.697lnW+1.940T

According to the technical process of grinding and some practice experiences from the operation, using the practical flux of ore feeding for rod mill, and the difference between the practical flux of ore feeding and the flux of undersize screen feeding as the premises of fuzzy rules, a non-homogeneous T-S fuzzy mode for optimized feeding decision-making of rod mill was built.

根据棒磨工艺流程和操作经验，以棒磨机实际给料量及其与棒磨后的筛下给矿料的比较值作为前件，建立了一个棒磨机给料的非齐次T-S优化决策模糊模型。

In order to realize nano feeding under large feeding force, according to the research existing state of nano feeding device all over the world and development tendency of this technical in developed country, a nano precision feeding scheme based on thermal deformation is presented, the mathematic modal of nano drive parts based on metal thermal deformation is established and stepped exponential fitting method is presented which can determine the parameters of modal.

为了在较大的进给力下实现纳米级进给，根据国内外纳米级进给机构的现状及国外工业发达国家该技术发展趋势，本文提出一种基于热变形的纳米级进给控制方案，建立了基于金属变形体热变形的纳米级进给部件的数学模型，并提出了确定模型参数的方法——分段指数拟合方法。

In order to realize nano feeding under large feeding force, according to the research state of nano feeding device and development tendency all over the world, combing with china "863" Program "the key technic research of nano precision drive parts having large feeding force", a scheme of nano precision drive parts with bilateral symmetrical structure using in quasi-static state conditions is proposed, the nano precision thermal drive parts are developed and the experimental system is established.

为了实现具有进给力的纳米级进给，根据国内外纳米级驱动部件的研究现状及发展趋势，结合国家&863&高科技计划资助项目&具有大进给力的纳米级驱动部件关键技术的研究&，本文首次提出一种在准静态条件下使用的具有双边对称结构的纳米级热驱动部件设计方案，并且研制纳米级热驱动部件及试验系统。

The result shown that,as feeding of fruit-eating bats and insert-eating bats,it is different in choosing the bat-bait,designing of bat-feeding box,feeding technique and method,feeding management.

野生动物饲养技术的发展，一方面为动物园展出动物的饲养提供技术保障，另一方面也为科学研究和科学实验提供技术支持。

And, there was significant difference between breast feeding group and artificial feeding group with breast feeding group and mixture feeding group.

结果 母乳喂养婴儿感染性疾病的发生率明显低于人工喂养组和混合喂养组，且母乳喂养组与人工喂养组、母乳喂养组与混合喂养组两组间的差异有显著性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。