established practice

基本解释

This approach flies in the face of established practice.
这个方法公然违抗了成规惯例。
Unpaid leave is becoming more common, and not only at the cyclical manufacturing firms where it is established practice.
无薪假期变得更普及，且不仅仅是按惯例实行的具有周期性质的制造业公司。
I think it's quite unusual to intentionally design a database this way nowadays, so it's likely you'll only need to create composite keys where it is a long-established practice.
我认为，如今故意以这样一种方式设计数据库的做法并不常见，您只需要在符合惯例的场合创建组合键。

Recognizing the September 11th attack as war was a departure from the established practice.
CENTERFORSECURITYPOLICY: Remarks to the Council on Foreign Relations
The shinkansen was not experimental: it was a carefully thought out scheme based on established practice.
ECONOMIST: Hideo Shima
An underlying factor in the protests' new unpopularity is awareness that rerouting is now an established practice.
ECONOMIST: Northern Ireland