fire demand的用法和樣例：
例句
- Use the need of water to assure fire protection, should build an upriver driveway and bibulous establishment.
為保證消防用水的需要，應修建通向水源的車(chē)道和吸水設施。 - Sprinkler systems or fire protection water should be used only to cool cylinders, not to extinguish the fire.
噴淋系統或消防用水只能用來(lái)冷卻鋼瓶，不能用來(lái)滅火。
