求翻译：系统机械设备大修的目的是清洗、检修、维护、修理机械内部以保证其原有的功能正常，在修理机械时，必须小心拆卸零部件，这样组装时就会很容易。以下是拆卸步骤：是什么意思？

The purpose of the overhaul of machinery and equipment cleaning, repair, maintenance, repair machinery to ensure that within its original function was normal, and demolition of parts in the repair of machinery, care must be taken so that the assembly would be easy. The following is the removal proce

The mechanical device designed for overhaul, repair, cleaning, maintenance, repairs to ensure that the machinery inside the function, when the repair machinery, must be careful to remove parts, so that they would be so easy