conditional reference信息详情
条件引用
conditional───n.条件句；条件语；adj.有条件的；假定的
reference───vt.引用；vi.引用；n.参考，参照；涉及，提及；参考书目；介绍信；证明书
conditional statement───条件语句；条件语言
conditional offer───有条件要约；附条件开价
conditional probability───条件概率，条件几率；条件概率；条件几率
syllogism conditional───条件三段论
conditional sentence───条件句
conditional sentences───条件句（conditionalsentence的复数）；条件句（conditional sentence的复数）
reference standard───[经管]参考标准
most cases, a conditional block issues user input actions depending on the value of a reference.───大多数情况下，一个条件块依靠一个引用的值发出用户输入动作。
The reference must exist in the test and precede the conditional block.───这个引用必须存在于测试中并且在条件块前。
It then invokes the update method to let the rules execution engine know about this change, which should trigger a reevaluation of the conditional elements of the rules that reference objectA.───然后它调用update方法，以允许规则执行引擎知道该更新，从而触发对引用objecta的规则的条件元素的重新求值。