But lightweight construction techniques, solar cells and battery technologies are constantly advancing.
不过轻量化构造技术，太阳能板和电池技术也在不断进步。
To achieve the desired lightweight construction, BMW will need to use very large quantities of the material — 150 to 200 kilograms (330 to 440 pounds) per vehicle.
要制成想要的轻质结构，宝马得用大量材料——每辆车需要150到200千克(330到440磅)。
This is what is considered lightweight construction.
这就是所谓的轻型建筑。
Given the temporary nature of the pavilion, a lightweight construction was chosen, with its wooden frame that can be disassembled and reused after the Exposition.
由于展馆为临时建筑，因此在设计上选择了轻质量结构，其木构架是可拆卸重装、二次利用的。
But this will take many years, and then will only function really effectively in conjunction with rigorous lightweight construction technology - one of our undisputed core skills.
但这需要很多年时间，而且必须与真正的车身轻量化结构有效结合，而这正是奥迪毋庸置疑的核心技术之一。
But this will take many years, and then will only function really effectively in conjunction with rigorous lightweight construction technology - one of our undisputed core skills.
但这需要很多年时间，而且必须与真正的车身轻量化结构有效结合，而这正是奥迪毋庸置疑的核心技术之一。
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