A full-size model of the core module of China's space station, Tianhe, made its debut last Tuesday at the 12th China International Aviation and Aerospace Exhibition (Airshow China) in Zhuhai, Guangdong province.

上周二，中国空间站“天和”号核心舱全尺寸模型在广东珠海举行的第12届中国国际航空航天博览会上首次亮相。

The main purpose of the core module is the unified control and management of the station.

该核心舱主要用于对空间站的统一控制和管理。

It will have autonomous flight capability, supportthe astronauts' long-time stay in outer space and help them conduct experiments concerningaerospace medicine and space science.

它具备自主飞行能力，能够支持宇航员长时间驻留外太空，并帮助他们开展航天医学和空间科学实验。

The space station will consist of a core module and two experimental modules, each weighing about 20 tons. It will accommodate three to six astronauts.

我国空间站将由一个核心舱和两个实验舱组成，每个舱段重约20吨，可容纳3-6名宇航员。

The designed lifespan of the space station is no less than 10 years, which can be extended by maintenance and repair work.

设计寿命不小于10年，具有通过维护维修延长使用寿命的能力。

The in-orbit construction of the space station is expected to be completed around 2022. It will be the country's space lab in long-term, stable, in-orbit operation.

该空间站将于2022年前后完成在轨建造。它将成为我国长期在轨稳定运行的国家太空实验室。