求翻译：大幅度减少装备、物资、工程等采购，延长各类装备设施的使用寿命，甚至可以动用一定的国防储备维持国防建设正常运转。是什么意思？

Substantial reduction in equipment, materials, engineering procurement, extend the life of various types of equipment, facilities, and even the defense could use some reserves to maintain the normal operation of national defense.

significantly reduce equipment, materials, engineering, procurement, such as extended service life of various kinds of equipment and facilities, and can even spend a certain amount of national defense reserve maintained normal functioning national defense building.

Large scale purchases and so on reduced equipment, commodity, project, lengthens each kind of equipment facility the service life, even may use the certain national defense reserve maintenance national defense development normal work.

Significantly reduced procurement of equipment, materials, construction and so on, extending the life of various types of equipment, you can even spend a certain amount of Defense reserve maintain the normal operation of the construction of national defense.

Significantly reduced procurement of equipment, materials, construction and so on, extending the life of various types of equipment, you can even spend a certain amount of Defense reserve maintain the normal operation of the construction of national defense.