同样不需要为多个系统储备许多备用部件，只需为一个单一平台留有备件即可。
Also, rather than needing to stock replacement parts for multiple systems, only spares for a single platform are required.
同样不需要为多个系统储备许多备用部件，只需为一个单一平台留有备件即可。
Also, rather than needing to stock replacement parts for multiple systems, only spares for a single platform are required.
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