For example, in a calculus course it's not terribly difficult to memorize the formula for integration byparts for integrals.
例如，在微积分课程中，记下分步积分法的公式并不是特别难。
2
Well, I don't expect that you would need integration byparts, although I still hope that some of you remember it from single variable calculus.
不要求掌握分部积分公式，但还是希望，有些人能在单变量积分中记住它。
3
The port and role bindings established through the CollaborationUse element define the roles in the contract requirements that are played byparts in the services software.