economize manpower and material resources
... 耗费人力物力 consume manpower and material resources 节省人力物力 economize manpower and material resources 人力物力资源 human and material resources; human and non human sources; human and non-human sources ...
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economize manpower and material resources
节约人力物力
以上为机器翻译结果，长、整句建议使用 人工翻译 。