【固定资产投资额】是以货币形式表现的在一定时期内全社会建造和购置固定资产的工作量以及与此有关费用的总称。该指标是反映固定资产投资规模、结构和发展速度的综合性指标，又是观察工程进度和考核投资效果的重要依据。

【房地产开发投资】指各种登记注册类型为房地产开发法人单位统一开发的各类房屋建筑物，配套的服务设施，土地开发工程和土地购置的投资；不包括单纯的土地开发和交易活动。

【房屋施工面积】指房地产开发企业本年施工的全部房屋建筑面积。包括本年新开工的房屋建筑面积、上年跨入本年继续施工的房屋建筑面积、上年停缓建在本年恢复施工的房屋建筑面积、本年竣工的房屋建筑面积以及本年施工后又停缓建的房屋建筑面积。多层建筑应填各层建筑面积之和。

【房屋竣工面积】指房地产开发企业本年按照设计要求已全部完工，达到住人和使用条件，经验收鉴定合格或达到竣工验收标准，可正式移交使用的各栋房屋建筑面积的总和。

【Total Investment in Fixed Assets】is a general term for the amount of work done by the whole society to construct and purchase fixed assets and the related expenses in a certain period, which is expressed in the form of money. This index is a comprehensive index reflecting the scale, structure and development speed of fixed assets investment, and also an important basis for observing the project progress and assessing the investment effect.

【Investment in Real Estate Development】refers to all kinds of houses and buildings, supporting service facilities, land development projects and land purchase investments that are uniformly developed by various registered real estate development legal entities; Excluding pure land development and trading activities.

【Floor Space under Construction】refers to the total housing construction area of the real estate development enterprise this year. It includes the floor area of houses newly started in this year, the floor area of houses continued to be constructed in the previous year, the floor area of houses suspended and suspended in this year, the floor area of houses completed in this year, and the floor area of houses suspended and suspended in this year after construction. Multi-storey buildings should be filled with the sum of the building area of each floor.

【Floor Space of Buildings Completed】refers to the total built-up area of all buildings that have been completed in accordance with the design requirements, met the conditions of occupancy and use, passed the appraisal by experience or reached the completion acceptance standard, and can be formally transferred for use by the real estate development enterprise.