For instance, Listing 6 shows how a regular expression can be used to extract the date of the first order in a customer's order History.
例如，清单6显示了如何用正则表达式从顾客的订单历史中提取第一笔订单的日期。
First off, in order to form a legal new expression on a type parameter, such as new T(), it's necessary to make sure that we're calling a constructor that is valid for every instantiation of T.
首先，为了对类型参数构造合法的new表达式（如 newT() ），必须确保我们调用的构造函数对于 T 的每个实例化都有效。
If the XPath expression does return more than one node and you've specified XPathConstants.NODE, then evaluate returns the first node in document order.
如果XPath表达式返回了多个节点并且指定了XPathConstants . NODE，则evaluate按照文档顺序返回第一个节点。
Getting a type error where XSL: sort with a select expression obtains more than one value (XSLT 1.0 just selected the first value in document order.)
带有select表达式(返回多个值)的xsl：sort报告类型错误(XSLT 1.0只能按照文档顺序选择第一个值。)
Then a vector expression which can compensate the first- and second-order PMD at the same time is derived by using the PMD vector of PMF.
该文首先从理论上导出了保偏光纤的偏振模色散矢量表达式，此表达式是由保偏光纤参数决定的。
First drives an expression of expected completion time in order to get the equivalent form of the objective function.
为了得到目标函数的等价形式，首先导出期望完工时间的一个表达式。
Under the first-order approximation of Taylor expansion, the analytic expression for the defect mode frequency is derived, from which the coupling factor is deduced.
利用泰勒展式的一级近似，得到了缺陷模频率的解析表达式，进而得到紧束缚理论中的耦合因子。
The character of generalized distance of equality sequence was discussed and the expression of first order recursive sequence about it was put forward.
文章通过对流体的速度场、电场和磁场中通量的解析，总结出了任意的矢量场通量的定义、一般表达式及一般计算方法。
The character of generalized distance of equality sequence was discussed and the expression of first order recursive sequence about it was put forward.
文章通过对流体的速度场、电场和磁场中通量的解析，总结出了任意的矢量场通量的定义、一般表达式及一般计算方法。
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