他从不改变自己通常的习惯。

He never deviates from his regular habits.

youdao

她按照通常的习惯，在海滨别墅度过了星期天。

She followed her usual custom of spending Sunday at her villa at the seaside.

youdao

但通常的习惯是,把立体区域上的外法向量规定为其定向,因为这么做之后，当你观察通量时会发现,它是从区域内部向外流动的。

But the usually traditional settings would be to take your normal vector pointing maybe out of the solid region because then you will be looking at flux that is coming out of that region of space.

youdao

That great deal of specificity implies that heat is also path-dependent and again we have the convention that if heat is added to the system, the quantity is greater than zero.

热也是与路径有关的,根据通常的习惯,如果我们对系统加热，其符号取为正。

麻省理工公开课 - 热力学与动力学课程节选