While the low-emission Bionic car was never mass-produced, Mercedes has used similar design principles in subsequent cars produced for market.
虽然这款小排量的汽车并没有被大批量生产，但梅赛德斯却将相似的设计理念运用到其他量产车型上。
2
It is found that the mean mass concentrations varied from month to month due to changes in emission intensity and meteorological conditions.
随着排放强度和气象条件的改变，痕量金属的月平均质量浓度也发生相应变化。
3
The monitoring technique of rock mass acoustic emission is of wide use in the stope stability. A grey model GM (1.1) for scientific forecasting was presented in this paper.