查询词典 can be used

This function can be used to sort an array by key, instead of by value. It's used like so

这个函数的作用是可以让数组按键值进行排序而不是值，使用方法如下

At present,this apparatus is used mainly for the examination of the perfectness of convergent spherical wave surface with aperture angle≤1:3,hence it can be used for the non-contact direct test of aluminized or unaluminized concave mirrors with any ...

因此可以用来无接触的直接检验任意口径的镀铝或未镀铝的凹球面镜；加入辅助镜后可以检验平面镜、天文望远镜用的各种非球面镜、介质的均匀性、光学系统的质量、光轴校正及安装变形情况；也可给出物镜对于现用激光波长(6328)的波面差及测出某些象差。

Catechol is mainly used for the intermediate of pesticides and dyes, also can be used the important intermediate of composed spicery and medicine.

可作为胶片的显影剂，感光树脂的热阻聚剂，抗氧化剂，防老剂，生产蒽醌、偶氮等染料的中间体。

SPIV was applied to a large-scale low-speed compressor facility with the configuration of the two CCD cameras placed on either side of the light sheet to make the measurement of the complex flow in hub-to-tip cross sections possible and to avoid the disturbance from the light sheet probe as used in the periscope-type configuration, which can also be easily used in multistage and high-speed turbomachinery.

本文将数字式SPIV技术应用到低速大尺寸压气机实验台上，解决了压气机内部非定常复杂流动瞬态场的技术难题，所发展的SPIV测量技术同样适用于多级叶轮机械；并在设计状态和近失速状态下，对转子槽道内叶尖区域及转静干扰条件下静子槽道内叶尖区域多个截面内的三维瞬态速度场进行了成功测量。

A chimney heated by solar energy can be used to drive the stack effect without increasing room temperature, and solar chimneys are very widely used to ventilate composting toilets in parks.

太阳能热烟囱可以用来驱动叠加效应，并没有增加室温非常广泛使用太阳能的烟囱通风堆肥厕所在公园里。

Modules are used by peer groups services, and can also be used by stand-alone services.

模块通过对等组服务被使用，还可以通过独立的服务被使用。

This paper is concerned with two problems: First, a formula is derived to estimate the error of system identification from the autoeorrelative function of stationary random disturbances and that of pseudo-random sequences. It can be used to select the type of pseudo-random sequences to be used for quick identification with a given error.

本文讨论了两个问题：(1)导出了平稳随机干扰的自相关函数、伪随机序列的自相关函数和系统脉冲响应辨识误差之间的定量关系式，可用来选择伪随机序列和估计试验误差。

The article covers the full research on such aspects as mathematic description, numerical analysis method and their practical applications. The diphase heating surface is divided into a hot water section, a evaporation section and a micro overheat section , the problems of model switching are avoided successfully between subcritical and supercritical working condition in the model of The diphase heating surface, and the model can be used for between subcritical and supercritical working condition without causing the model stiff infinity prick up problem. The mathematical model and dynamic characteristic account is unified and predigested for the diphase heating surface of once—through boiler under subcritical and supercritical pressure, and propose that the working conditions at phase change point could be used as divide criterion between water region and steam region under supercritical pressure, the problems are solved successfully between water and steam phase change point under supercritical pressure.

本文在过程的数学描述、数值分析以及实际应用等方面进行了系统的研究分析，将双相受热面统一划分为热水段、蒸发段和微过热段三段，所建立的双相受热面模型不但成功地避免了超临界工况与亚临界工况间的模型切换，而且消除了由区段划分欠妥所引起的模型刚性无限加剧的问题，统一并简化了超临界及亚临界压力下直流锅炉双相区段的数学模型和动态特性计算，而且提出了利用相变点工况作为超临界压力下划分汽水区域的标准，解决了超临界压力下水与蒸汽的相变点问题。

Historically, JIT has generally been viewed as an inventory reduction technique which can be used to reduce continually the levels of inventory in a production process until stopped by some event (the rock in the lake and rocks illustration often used to describe JIT).

从历史上看，JIT通常会被看作是一个存货的技巧可以被用来持续减少库存水平在生产过程中一些活动直到停在这个湖和岩石插图通常用来形容JIT。

The magnet which is used in subminiature NMR Rock Analysis Instrument is successfully finished. After testing on site many times, it shows the NMR Rock Analysis Instrument which uses this magnet have high stability.So it can be used under stated condition .

经过实际的现场实验测试，表明由此磁体构成的磁共振岩样分析仪的稳定性、重复性都不错，同时在一定的恶劣环境下也能正常工作。

Hanna: That's over now, isn't it?

都结束了，对吗

You must be ill. You look so pale.

你一定是病了，你的脸色苍白。