求翻译：3.2重要改装：指未列入局方批准或认可的航空器、发动机、螺旋桨技术革新资料中的以下改装：可能会显著影响重量、平衡、结构强度、性能、动力装置运行、飞行特性或显著影响适航性其它特性的；或不是按照经认可的常规做法或基本操作的方法完成的改装。是什么意思？

3.2 an important modification: that is not included in the Council approved or recognized by the aircraft engine, propeller innovative data the following modification: may will significantly with the impact of weight, balance, structural strength, performance, power devices running, flight character

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3.2 important re-equipping: Refers has not included official prescription authorization or approval aircraft, engine, in propeller technological innovation material below re-equips: Possibly can obviously affect the weight, the balance, the structural strength, the performance, the power unit moveme

3.2 important modifications: not included in the Council's approval or endorsement of an aircraft, engine, propeller following modifications, technological innovations in data: may significantly affect the weight, balance, structural strength, performance, power plant operation, flight characteristi