大气沉降 meaning in Chinese

atmospheric fall out
atmospheric precipitation
atmospheric sedimentation

The factors mainly include soil acidifying , higher organic matter content in the soil , lead of precipitum in the air and the processing of the tea leaves in the factory
这些来源主要包括：茶园土壤酸化和较高的有机质含量，大气沉降物中的铅和茶叶的加工过程。
2 . po4 - p budget in jiaozhou bay : seawater - accommodated po4 - p in jiaozhou bay is attributable to discharge from the rivers around jiaozhou bay and input from seawater - bottom sediments exchanging , and output to huanghai sea by hydrodynamic process
河流径流输入、沉积物释放和大气沉降是胶州湾海水中din的主要外部来源，由浮游生物活动而在水体中再生的din是胶州湾海水中din的内部来源。