As more and more cars are produced and used, so the emission from their exhaust-pipes contains an ever larger volume of poisonous gas.
随着越来越多的汽车被制造和使用，这些汽车排气管里的排放物所包含的有毒气体的总量也越来越多。
2
During the cracks producing, there existed very significant power correlation between the average volume of cracks and N2O daily emission flux.
在裂缝产生过程中，裂缝的平均体积与N2O日排放通量之间存在极显著的乘幂关系。
3
The numerical simulation results show that the modulation bandwidths is obviously different by varying the active volume at an high spontaneous emission coupling ratio.