查询词典 variable

Majority of the problems researched by them were confined to the difference equations with positive variable or constant coefficient.

但大部分讨论的都是确定方程中变系数为正、或常系数的差分方程问题。

A constant, variable, function name, or expression.

一种常数、变量、函数名或表达式。

For a macro which can take a variable number of parameters, the parameter reference %0 will return a numeric constant giving the number of parameters passed to the macro.

对具有可变参数个数的宏，%0参数引用将返回传递给宏的参数个数。

The major findings include:(1) By using fuel as the base indicator of relative efficiency, we found the following input factors' distribution inefficiency for domestic airlines: The distribution inefficiency of labor and capital input factors differs from airline to airline, and is becoming more severe with time; the distribution inefficiency of other factors does not differ very much among airlines but varies with time. It is inefficient from 1989 to 1995 but becomes more efficient during 1996 to 1997;(2) Airline companies have higher economies of density before 1996, but tend to show a constant return to density in 1997 when considering allocative distortions. The technical efficiency of input factors as a whole has declined after the open-air policy;(3) The costs of airlines are increasing significantly due to their distribution inefficiencies;(4) The instrument variable generated through a quasi price function does not have significant influence on cost; this may imply that airline companies in this time period did not exhibit the phenomena of high-quality high-price.

其主要结论如下：(1)藉由相对燃油分配效率探讨各投入要素之分配扭曲情形发现：劳动和因定投入要素之分配无效率因公司别而有所不同，且随时间而严重，唯民国86年稍有改善；其他要素之分配无效率则较不因公司别而有所不同，但亦随时间发生变化，初期为无效率，在民国85、86年则较具效率；(2)若考虑分配扭曲情形下，国内航空业在民国85年之前具有较高之密度经济，民国86年则趋向固定密度报酬；此整体投入要素之技术效率而官，在天空开放政策后其技术效率随时间变化而下降，但就燃油投入要素平均技术进步率而言，则其技术效率逐年增加且幅度明显；(3)航空公司因分配无效率所造成成本增加的情形相当明显；(4)准价格工具变数对成本之影响并不明显，此可能反映在此期间国内航空公司似乎并未趋向於高品质高价格之现象。

In the field of wind power generation variable speed constant frequency operation is a new high efficient technology.

它可以最大限度的获取风中的能量，提高能量的利用率，是各发达国家重点研究的对象。

I only completed simply variable speed constant frequency test and synchronization test because of time and equipment.

由于时间，器件等的原因，只完成了基本的变速恒频实验和并网实验。

Analysis of a Variable Speed Constant Frequency Wind Power Generation System works.

详细说明：析了变速恒频双馈风力发电系统的工作原理。

There is still a serious problem with defining a variable to represent a constant value.

定义一个变量代表某一常数的方法仍然有一个严重的问题。

Presents the automatic control system scheme,especially that of the air conditioning system of constant and variable air volume .

简要叙述了该智能楼宇空调自控系统的整体结构，详细介绍了定风量和变风量空调系统的控制方案。

This paper introduces the properties of variable air volume system and constant air volume system.

对于气体来说，必须把恒容和恒压下发生的状态改变区别开来。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。