利用率

This problem dates back to 1611, when Johannes Kepler conjectured that the best packing arrangement for identical spheres was arranging them in what is now called face centered cubic packing - similar to how one sees cannon balls stacked.

这个问题可追溯到1611年约翰尼斯·开普勒提出堆积等大球体最佳方法的猜想（译者注：当等大球体按照--球心位于正方体各面的中心上--的形式，并且将第一层摆放成六角形时，它们占用的空间最小，对空间的利用率可以超过74%），现在把这个方法叫做面心立体堆积法--类似于加农炮弹的堆积方式。1998年，安娜堡密西根大学教授托马斯·C·黑尔斯证明了这个猜想。

A 2×7 factorial experiment was used to study the effects of animal and removal period of digesta(4、8、14、24、32、38、48 h) on the residual amount of dry matter in digestive tract.

为阐明鸡、鸭对营养物质利用率差异的原因，研究了禽别和消化道排空期(4、8、14、24、32、38、48 h)对消化道残留内容物含量的影响，比较食糜在鸡和鸭消化道不同部位的排空速度和排空率。

The fan-out angle of the line laser can reach the 62 degree, and energy efficiency exceeds 80%. In the background of strong sunlight , image acquisition and identification work still can be done well.

激光线的扇出角达62°，能量利用率达80%以上，在强烈的太阳背景噪声下仍然能进行图像采集和识别工作。

A number of different approaches have been used to assess bioavailability of Zinc in the feedstuff.

文摘：本文扼要地介绍了目前评定饲料锌生物利用率的方法的基本原理以及这些评定方法的优缺点，并总结了使用不同方法所得出的评定结果，以供畜牧工作者参考。

The utilization rate that has made this labour oppose raise spot footmark is very important.

做好这项工作对提高现场足迹的利用率非常重要。

It is verified by numerical simulations that the DDT-GC scheme is able to guarantee the quality of services, decrease the handoff dropping probability and forced termination probability, and improve the system resource utilization.

数值仿真结果表明，DDT-GC策略既保证了系统的服务质量，又有效地降低了系统的切换中断率和呼叫阻塞率，同时提高了系统资源的利用率。

It is verified by the numerical simulations that the DDT-GC scheme can provide the necessary service guarantee. At the same time, it can decrease the handoff dropping probability and forced termination probability, while improving the system resource utilization.

数值仿真结果表明，DDT-GC策略既保证了系统的服务质量，又极大地降低了系统的切换中断率和呼叫阻塞率，同时提高了系统资源的利用率。

Results show that the device can improve the formability and the utilization efficiency of sheet metal and avoid various defects.

实践表明，该装置可提高板料的可成形性、材料利用率，减少不良缺陷的发生。

Aluminum sunroof rails with good formability and dimensional stability, high rate of recovery, thus reducing the production costs.

铝合金天窗导轨具有良好的成型性和尺寸稳定性，回收利用率高，从而降低生产成本。

Indices, including average line loading, average line flow limit per MW served, line investment ratio are proposed to quantify the stress level of the system, while the probability distribution function of fractional load shed and total failure components, cascading failure frequency, and risk are used for the risk analysis of cascading blakcouts.

论文提出了网络利用率、单位平均投资和线路投资比等指标，对系统的临界水平进行量化；并采用连锁故障灾难度的概率分布函数、连锁停电事故频度和风险等指标分析电力系统的连锁故障风险。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐