Of course, with open source that lock is a lot less restrictive.
当然，使用开源这种限制会少很多。
In this case, the constraints should be less restrictive.
在这种情况之下，约束并不具有较强的限制性。
A check-in lock is less restrictive than a check-out lock.
签入锁的限制少于签出锁。
A check-in lock is less restrictive than a check-out lock.
签入锁的限制少于签出锁。
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