TS (Trace Selections) produces a message each time a stylesheet directive performs a select operation to retrieve data from the source document.

TS(跟踪选择，Trace Selection)，每当样式表伪指令执行select操作以从源文档检索数据时就生成一条消息。

youdao

It has some directive significance in tensioning operation of circular saw and it's further study.

对圆锯片适张作业及其进一步的深入研究有一定指导意义。

youdao

Next working standard is established. As a directive document it makes operation and quality standard more clear. The method is spread in the range of factory.

接下来编制了作业标准书，作为生产中的指令性文件，使操作者和管理者对操作标准、质量标准一目了然，这一方法还推广到了全公司的范围。

youdao

"On the directive of the government, the army is now in full scale operation to eliminate,militants,miscreants and anti-state elements from Swat,".

VOA: standard.2009.05.07