The most stringent requirement of XHTML-MP is that you create well-formed XML.

XHTML - MP严格要求创建格式良好的XML。

youdao

The more stringent requirement between these Brand Standards and the international code(s) must be followed as a minimum.

必须将这些品牌标准和国际规范之间的更为严格的要求作为最低要求来遵守。

youdao

This has been achieved through extensive development, strict quality control, and a stringent pre-production testing requirement of 400 drives passing 500 hours of intensive tests with zero errors.

ENGADGET: Plextor trots out M5M series mSATA drives at CES

But this requirement is even more stringent for perjury prosecutions.

CNN

But the stringent condition was not imposed on banks (current requirement: 8.5%) and the other finance firms (7.5%).

CNN: UNDER THE KNIFE