属性可为多值的，也可为单值的。
因为分类属性可以是多值的也可以是单值的，所以要用try - catch语句检查它。
Because the category property can either be multivalued or single-valued, you check for it with a try-catch statement.
通过该模板，可将获得的所有数据（数组格式的、多行的、单值的或JSON 数据结构中的任何内容）转换成原生PHP 格式，放在 $value变量中。
With that, you've got all the data -- array format, multiple rows, single values, whatever you stuffed into your JSON data structure -- into a native PHP format, in the $value variable.
一个紧凑的豪斯多夫空间是单值化的。
半定量玻片凝集试验和单管维达尔试验的阳性预测值（PPVs）分别为25.0%（95%可信区间：0.6-80.6）和20.0%（95%可信区间：2.5-55.6）。
The semiquantitative slide agglutination and single-tube Widal tests had positive predictive values (PPVs) of 25.0% (95% confidence interval, CI: 0.6–80.6) and 20.0% (95% CI: 2.5–55.6), respectively.
常规/重量（单次承受力道最大值的百分比）
这个选中的值随后将更新订购单中的成本中心字段。
This selected value would then update the cost center field in your purchase order.
在调用存储过程时，并没有将转换表中的实际值传递给存储过程，而是只传递了一个单值。
When a stored procedure is invoked, the actual values in the transition table are not passed to the stored procedure. A single value is passed instead.
所有线程都返回相同的值，这说明这是一个线程安全的使用泛型来实现的单态模式。
They all output the same value illustrating that this is a thread-safe generic way to create singletons.
如果提供的是一个单值，那么语言标识符缺省为创建发布者帐户时注册中心决定的语言，通常为英语。
If a single value is provided, the language identifier defaults to a language determined by the registry at the time the publisher account was created, typically English.
这个单值是转换表的定位器，存储过程用它来访问转换表的列。
This single value is a locator to the transition table, which the procedure USES to access the transition table columns.
您将在后面的一个示例应用程序中管理一组锦标赛数据，这是一场由16支队伍参加的单场淘汰赛，取自该程序的清单1展示了一个原子值序列的示例。
Listing 1, taken from the upcoming sample application in which you'll manage the data for a 16-team single-elimination tournament, shows an example of a sequence of atomic values.
约束可以是简单的单值，也可以是复合值或多个类型。
Constraints can be simple single values, or they can be a compound value or multiple types.
单值上下文变量计算为在参数上下文中替换的字符串，例如，%wf:process.starter%计算为sarah。
Single value context variables evaluate to a string that is replaced in the parameter context, for example %wf:process.starter% evaluates to sarah.
但是注意单参数构造器不是把空链表放入到rest域，这是构建一个只有一个值的链表所必须的。
But notice that the single-argument constructor does not place an empty list into the rest field, as would be necessary to construct a list of one argument.
UDDIProxy上的find _ business和find_service方法现在接受“Name”对象的集合，而不是只接受一个单值。
The find_business and find_service methods on UDDIProxy now accept a collection of 'Name' objects rather than a single value.
一旦应用了该模板，您就可以确定 rank_specification 原型属性的值，这将决定建立的数组是单维的，还是多维的，或者是多重数组。
Once the stereotype is applied, you can specify the value for the rank_specification stereotype property, which denotes whether an array is 1-dimensional, multi-dimensional or jagged array.
在最后一个示例中，测试home变量的值，用单目操作符- d检查它是不是目录。
In the final example, the value of the HOME variable is tested to see if it is a directory using the -d unary operator.
单复变量包含实数和虚数两部分，针对两个实值函数n(x) 和v(x)的表达式为：b(x) = n(x) +iv(x)。
fullprof A complex variable has real and imaginary parts written in the form b(x) = n(x) + iv(x) for two real-valued functions n(x) and v(x)
在比较类名和属性名时，API会寻找容器内的单值，并区分大小写。
When it compares class names and attribute names, it looks for uniqueness in its container and USES case-sensitive comparisons.
返回一个单值，它是这样构造的：首先以序列的前两个元素调用函数，再以返回值和第三个参数调用，依次执行下去。
"Reduce (func, sequence)" returns a single value constructed by calling the binary function func on the first two items of the sequence, then on the result and the next item, and so on.
对于非线性元件的输出为单值而输入有多值的情况，令输出为正弦信号，输入包含有各次谐波。
If the nonlinear element has a single output and multiple input values, the output signal is taken to be sinusoidal and the inputs contain harmonics.
单纱经过捻线工序能改善条干，不同的捻线工艺路线对纱线条干c V值产生不同的影响。
Through twister process, single yarn can improve evenness, and different twister technology route have different influence on yarn evenness CV value.
用于标准系统双值和单值压力测量仪器，是为了满足带有压缩空气式制动器车辆压力测量，而专门研发的。
The double and single pressure measuring instruments in the standard systems were developed specially for the measurement of pressure in vehicles with a compressed air brake.
如果保险单是不定值保险单，赔偿范围是保险标的的可保价值。
If the policy be an unvalued policy, the measure of indemnity is the insurable value of the subject-matter insured.
当信号值是相对地而言的，则使用单端连接。
The single-end connection is useful when a signal is referenced to ground.
本文对非降或非增单值函数光滑曲线的绘制方法进行了改进，从而合理地绘制出毛管压力曲线。
In the paper, the technique of drawing a smooth curve of non-reduced or non-increased single-valued function is improved so that the capillary pressure curve can be drawn rationally.
定义数据的最小单位。一个数据项类型可以表示一个值或一个取单值或多值的数组。
The smallest unit of defined data. A data item type can represent a single value or an array of one or more values.
他们证明了产生单值群的变换可以任意地预先指定。
They showed that the generating transformation of the monodromy group can be prescribed arbitrarily.
他们证明了产生单值群的变换可以任意地预先指定。
They showed that the generating transformation of the monodromy group can be prescribed arbitrarily.
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