Work items with a blank policy set are assigned a named policy set by the first service to require that information.

空白策略集合的工作条目被分配给指定的策略集合，通过第一个服务请求该信息。

youdao

Logon failure: user account restriction. Possible reasons are blank passwords not allowed, logon hour restrictions, or a policy restriction has been enforced.

登录失败：用户帐户限制。可能的原因是不允许空白密码，登录时间限制，或限制政策已被强迫。

youdao

Possible reasons are blank passwords not allowed, logon hour restrictions, or a policy restriction has been enforced.

可能的原因包括不允许空密码，登录时间限制，或强制的策略限制。

youdao

But a blank-check policy on letting any and every Internet-enabled device onto you corporate network?

FORBES: The Bring Your Own Software Trend - And Why It Will Be Brief

It definitely will fill in a big blank for lawmakers and tax-policy experts.

WSJ: Tax Report: Is Taxing Health Plans Next?

Labour is in the middle of a two-year policy review, which famously began with a "blank sheet of paper".

BBC: Labour conference: Call to axe half of universities