一般来说这里必然会有大气压存在。
It was found that 78% zinc extraction was obtained at room temperature and atmosphere pressure.试验结果表明:在常温常压下,用硫酸浸出该氧化锌矿石锌的浸出率可达到78%。
The atmosphere pressure gradient is an inverse measure of the spacing of the isobars on a weather map.气压梯度与天气图上等压线的间隔大小成反比。