variable ['vɛəriəbl]

variable的基本解释

adj.

可变的, 易变的, 不定的

• The weather here is variable.
• 这里天气反复无常。

• The speed of the toy boat is variable.
• 玩具船的速度是可变的。

n.

变量, 可变物

• Temperature and rainfall are variables.
• 气温和降雨量是变量。

• We should take all the variables into account when we make a plan.
• 我们制订计划时应该把所有的可变因素考虑进去。

variable的反义词

adj. constant · invariable

variable所属的单词分类

Math & Number / 数学与数字 [192]

y-coordinate  ·  long division  ·  kilo-  ·  x-coordinate  ·  scientific notation  ·  greater than  ·  Venn diagram  ·  q.e.d.  ·  greater  ·  y-axis

Science / 科学 [182]

xenobiology  ·  materials science  ·  genomics  ·  evolutionary biology  ·  earth sciences  ·  Petri dish  ·  volumetric flask  ·  organic chemistry  ·  molecular biology  ·  exobiology

与variable相关的网络例句 [注：此内容来源于网络，仅供参考]

The main content of the study includes: the policy variables are classified into two types, which are continuous policy variable and discrete policy variable, and the two variable is analyzed respectively; as to the continuous policy variable, use reasonable weighting to synthesize comprehensive policy indicator to reflect the comprehensiveness of each main policy indicator; undertake regression analysis for the comprehensive policy indicator, economic and stock market variable and get the effect of all kinds of comprehensive policy indictor variables on the economy and stock market; undertake regression analysis for data on the economic indicator and the data on the stock market and get the relationship between the economy and the stock market; use event research method to analyze its effect on the stock market and get some corresponding conclusions; structure the differential or difference equation groups on the interactive relationship among the variable economy, stock market and policy and do the difference operation and constitute simultaneous equation with the original main variables one after another; use quantitative regression method and solve the coefficient of the simultaneous equation to predict the operating tendency.

本研究主要内容包括：将政策变量划分为连续性政策变量和离散政策变量两个类型，并分别进行分析；对于连续性政策变量，采取合理的权重来合成政策综合指标，反映各主要政策指标的综合力度大小；将各政策综合指标与经济、股市变量进行回归分析，获得各类政策综合指标变量对经济、股市影响程度的大小；将经济指标数据与股市数据进行回归分析，获得经济与股市之间关系的大小；采取事件研究方法来分析其对股市的影响程度；构建关于经济、股市与政策各主要变量之间互动关系的微分或差分方程组，进行差分运算，并以此与原来各主要变量组成联立方程；运用计量回归方法，求出联立方程系数用于预测。

Furthermore, transfer coefficient between total content and variable speciation including acid-soluble/exchangeable, reducible, oxidisable fraction of heavy metals are different. Transfer coefficient of total Cr is 0.65 in tailings area, but that of variable speciation is 0.26. In contrast with Cr,transfer coefficient of total Ni is 0.26, but that of variable speciation is 0.67. The similar characteristics on Pb and Zn in cultivated soil, namely, transfer coefficient of total Zn is high, but low for variable speciation, which is reversed for Pb. Transfer coefficient of total content and variable speciation in abandoned soil are low compared with above two fields soil, especially, variable speciation of Cu and Ni are not transported almost down soil profile.

重金属总量和活性态（包括弱酸提取态、可还原态、可氧化态）迁移率也表现出很大差异，尾矿区土壤Cr总量迁移率较高为0.65，而其活性态迁移率较低为0.26，Ni与Cr迁移特征完全相反，总量迁移率为0.26，而活性态迁移率为0.67；农田土壤中Pb总量迁移率低而活性态迁移率高，Ni与Zn特征相似，总量迁移率高而活性态迁移率相对较低；大棚地土壤中重金属迁移率均较低，Cu和Ni活性态几乎未发生向下迁移。

So in this paper based on the characteristics and the optimum state theory of the vehicle, some kinds of control schemes are compared and discussed, and the fuzzy PID control scheme is adopted at last. The relation between air-cushion pressure and fan rotational speed on the optimum driving state is studied. The cushion pressure is used as controlled variable and the fan revolution is used as regulated variable. And transducer and fan motor are actuators.Based on the structure and operating properties of half-tracked air-cushion vehicle, the control system scheme and structure are presented. A control scheme using the self-tuning PID fuzzy logical controller is adopted. Fuzzy rules are set up and some researches have been done for fuzzy tuning method. At the same time the real-time measurement scheme by computer control is proposed, and electric circuits are designed. In the control system of half-tracked air-cushion vehicle cushion pressure P〓 is used as controlled variable and the fan speed n〓 as regulated variable.

因此本文以半履带式气垫车的特性和最佳工作状态理论为指导，通过对各种控制方法的比较与探讨，提出采用模糊PID控制方案，并且研究了在最佳工作状态下垫压及风机转速的关系，提出气垫压力作为控制参数，变频器和风机电机为执行机构，风机转速为调节量；主要进行了自整定模糊PID控制器的设计，研究了自整定PID模糊控制器的实现方法，编制了模糊控制规则，制定了模糊控制参数查询表，并分析了影响自整定模糊控制器相关的影响因素，确定了模糊控制表；为了实现半履带式气垫车的自动控制，还提出了计算机模糊控制系统的原理与结构，设计了相应的测量电路与控制软件。

与variable相关的网络解释 [注：此内容来源于网络，仅供参考]

variable：变量

选中该选项,下面的"变量"(Variable)列表框被激活,用户需要通过单击 按钮从左边原变量中选择一个分析变量进入"变量"(Variable)列表框中,然后单击[更改统计量](Change Statistics)按钮,SPSS将弹出"统计量"(Statistic)对话框,

variable：变数

我们都知道:数学上也有所谓"常数"(constant)与"变数"(variable),可见常与变的问题,实在是无所不在的. 一般人的看法,总是把变与常当作是对立的:有变便没有常,有常便没有变;又由于在现象上,万事万物又确是随时在变动着的,因此,

variable：计量值

一个单一可量测之品质特性如外径、重量或体积,称为计量值(variable). 计量值管制图已被广泛地使用於统计制程管制中,因比起计数值管制图,计量值管制图可提供更多有关制程之资讯. 若某一机率分配之变异数为未知,

variable：变项

行为主义(behaviorism)者则主张在控制条件下观察实验心理学(experimental psychology)就是在实验控制条件下对心理据这个定义,只要是用实验法(experimental method)来研究的心理学问题,变量(或变项)(variable)是指在数量上或质量

variable：abbr. vari; 可变的