系统既解决了长期传统进户验表收费的难题，又为城市安全供气与管理创造了优越条件。
It resolve not only traditional checking and counting by doors, but superiority condition for the city gas supplying and management.
系统既解决了长期传统进户验表收费的难题，又为城市安全供气与管理创造了优越条件。
It resolve not only traditional checking and counting by doors, but superiority condition for the city gas supplying and management.
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