定规用英文怎么说

20次大中小

定规的英文：
established rules or system

参考例句：

There was no recipe for her minestrone soup. It was always a work in progress.
妈妈的意大利蔬菜通心粉汤的配料并无定规。它总是在不断的改善之中。

The Registrar may exempt any class of ships from all or any of the requirements of this section.
注册官可豁免任何级别的船舶，使其不受本条所有或任何规定规限。

"Now you all have your duties, and if anything goes wrong I shall deal with the group concerned."
"如今都有定规,以后那一行乱了,只和那一行说话."

established是什么意思：
adj. 已确立的，确定的

Eastern Establishment
东部权势集团

This community was the heart of the American Establishment.
这个集团是美国权势集团的心脏。

The eradication of an established infestation is not easy
根除昆虫蔓延是不容易的。

rules是什么意思：
n. 规则；惯例；统治
v. 控制，影响；规定；统治

rule of detachment
分离规则

commutation rule
交换法则

This is what ruling is!
这就是统治的意义！

system是什么意思：
n. 体系，系统；设备；制度；方法；身体；次序

Is the system unstable?
是系统不稳定吗？

It was not a perfect system.
它不是一个完美的系统。

This is a sexpartite system.
这是一个由六部分组成的系统。