一些函数的输入是数值，比如字符串函数的起始、长度和偏移量参数。
For some functions, a numeric value is input, for example start, length, and offset parameters of string functions.
它不会对数值字段生效，除非这些字段具有一致的长度。
It does not work on numeric fields unless the fields are all the same length.
字符串长度单元属于数值。
例如，对于长度是不是对一个有意义的标尺足够大的正数值，或者指定的文件是不是ImageMagick的有效图像文件类型，我们没有进行验证。
For example, we do not validate that length is a positive number big enough for a meaningful ruler or that the file specified is a valid image file type for ImageMagick.
字符串数据长度的变化或数值型数据精度和等级的变化也表明在数据的表示、验证和使用上存在潜在的问题。
Variations in length for string data or in precision and scale for numeric data also point to potential issues in data presentation, validation, and usage.
在格里历中，一年的长度为365.2425天，“这个数值足够接近正确值，这样四季的时间就不会变动不定了，”麦克罗伯特说。
Under the Gregorian calendar, the year is 365.2425 days long, "close enough to the true fraction that the seasons don't drift," MacRobert said.
以后你们还会学到更多，你会学到字符串，不仅仅能运用标准数值运算，你还可以对他们求长度，或者加上其他的东西。
You're going to get a chance to explore them, and you'll see not only are there the standard numerics for strings, there are things like length or plus or other things you can do with them.
该分析最常用于确保字段长度（对于数值型数据，则包括精度和等级）是一致的，但是也可以解决数据类型不匹配的问题。
Most commonly this looks to ensure that field lengths are consistent (or precision and scale for numerical data), but may also address issues in misaligned data types.
或者如果摩天大楼有外置的紧急楼梯，那就更容易了，沿楼梯从下往上走，以气压计长度为单位标注摩天大楼有多少个气压计长度，然后再把这些数值加和起来。
Or if the skyscraper has an outside emergency staircase, it would be easier to walk up it and mark off the height of the skyscraper in barometer lengths, then add them up.
其他的都是在这个基础上改变长度和发射数值。
All the rest was based on it with some tweaks in length and emission number.
利用数值模拟优选了布井方式、井网井距、水平井段长度、转sagd时机和注采参数。
A numerical simulation was conducted to optimize the well placement, well patterns and spacing, horizontal interval length, timing of switching to SAGD and operating parameters.
通过理论分析和数值计算，得到了临界速度与冲击质量、临界长度及线性强化模量间的关系。
The relationship among critical velocity and impact mass, critical buckling length, hardening modulus is given by using theoretical analysis and numerical computation.
针对已有计算方法的不足之处，提出了一种各种状态下悬索桥主缆线形的精确数值算法和索股、吊索长度的计算方法。
In view of the drawbacks of the existed methods, an accurate numerical analysis method to calculate the cable shape in various cases and the length of cable strand of suspension Bridges is presented.
根据设计规范的要求对线光源的最短长度进行了数值分析。
A numerical analysis of the shortest length of headlight's filament is made in the paper.
由此实验值对聚合物光纤中的模式耦合过程进行了数值模拟，得到了聚合物光纤的模式耦合长度。
The mode coupling process in POF was simulated numerically using the experimentally measured coupling coefficient and the coupling length of POF was obtained.
数值计算表明，气体速度随入口段曲率半径的增大而增大，拉伐尔喷嘴和长度则随曲率半径的增大而减小。
The numerical calculation results show that the gas velocities increase with the reduction of curvature and the length of laval nozzle decreases with the increase of the radius of curvature.
得到了燃烧室内回流区再附长度及速度分布的数值解。
Numerical solutions for retouchment length and velocity-distributions -were obtained in the recirculating zone of the combustion chambers.
最后通过数值算例，针对不同问题讨论了材料常数、楔口角度、裂纹长度对相互作用的影响。
The numerical examples are provided to show the influences of the material properties, the wedge Angle, dislocation position and the crack length on the interaction.
下面的示例用前导零设置若干个整数值的格式，以使格式化数字的总长度至少有八个字符。
The following example formats several integer values with leading zeros so that the total length of the formatted number is at least eight characters.
在理论计算的基础上，给出了话音编码速率和分组开销为不同数值时的最佳话音分组长度。
On the basis of theoretical calculation the optimum voice length is obtained for different voice signal coding rates and packet overheads.
并采用数值实例分析了退货率和时间惩罚因子对最优允许退货时间长度、最佳订货量以及最大产品收益的影响。
The influence of return rates and time penalty factors on optimal periods of returns, optimal order quantities and maximum profit are evaluated through using a numerical instance.
设备令牌的长度为两个字节的整数值的网络字节序。
The length of the device token as a two-byte integer value in network order.
采用数值计算方法模拟了同样增益长度的单、双增益模块系统的热特性和输出激光的远场光斑分布，并进行了对比分析。
The heat character and far-field facula of liquid laser with single gain host and double gain host at the same gain length were simulated, and then compared.
下列范例会以前置字元零格式化数个数值，让格式化数值在小数点左边的总长度至少为八个字元。
The following example formats several numeric values with leading zeros so that the total length of the formatted number is at least eight digits to the left of the decimal.
模式转换效率可化作声波频率、声光作用长度、波导厚度和声波功率密度的函数，并利用数值计算得出结果。
Mode conversion efficiency has been calculated as functions of acoustic frequency, interaction length, guiding layer thickness, and acoustic drive power density.
数值模拟发现，在脉冲传输距离与扰动周期长度的关系中存在着一种多极值结构。
We numerically show that there are many extremums in dependence of the propagation distance on the period lengths of perturbation.
数值模拟结果表明，在堵塞条件一定时，单自由面垂直炮孔爆破漏斗与装药长度无关。
The results indicate that there is no relationship between the explosion crater and the length of the charge under a certain stemming condition.
采用模型试验和三维数值模拟，对侧墙掺气坎空腔长度的影响因素进行了探讨。
Based on model of experiment and numerical simulation, the factors influencing the length of air cavity are analyzed in this paper.
杂凑值是唯一识别资料的固定长度数值。
A hash value is a numeric value of a fixed length that uniquely identifies data.
杂凑值是唯一识别资料的固定长度数值。
A hash value is a numeric value of a fixed length that uniquely identifies data.
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