对瓣的

Specific gravity is the ratio of the density of a substance to the density of water.

比重是某物质的密度与水的密度之比。

By introducing the MINI E, the BMW Group is underscoring the resolve with which it works towards reducing energy consumption and emissions in road traffic.

通过引入迷你E中，宝马集团强调的决心与它在减少能源消耗和排放的道路交通工程。