For example in the filter expression $x[count(.|$y)=count($y)] (which is the only convenient way in XSLT 1.0 of doing a set intersection operation), Saxon will evaluate count($y) only once.

例如，在过滤器表达式 $x[count(.|$y)=count($y)] 中（它是 XSLT 1.0 中执行一组逻辑乘操作的唯一简便方法）中，Saxon 只对 count($y) 求值一次。

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The grid intersection is from the x and y routing grid pitch for that layer.

在网格交叉点上是通过图层工艺网格的X和Y轴。

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