求翻译：第十六条 供热计量装置的折旧、周期检定和维修费用应当计入供热成本和热价。供热计量装置超过正常使用年限需更换时，其费用由供热单位承担。是什么意思？

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Article 16 The depreciation for thermal measurement devices, Cycle testing and maintenance costs should be counted in heating costs and hot prices. Heat measurement devices need to be replaced when they exceed the normal life span, its costs borne by heating units.

The 16th article heating measurement installment depreciation, the cyclical examination and the maintenance cost must include the heating cost and the hot price.The heating measurement installment surpasses when the normal service life must replace, its expense by the heating unit undertakes.

16th heat metering equipment depreciation, periodic inspection and maintenance costs shall be included in the cost of heating and hot price. Heating appliance is above the normal useful life should be replaced, the costs borne by the heating unit.