The factors such as rain time, precipitationform and topography should be considered when the samples are collected for chemical analysis.
在采集水样进行养分分析时,应考虑降水时间、降水形态和地形等因子的影响。
2
Second, most of the precipitation in the Arctic is in the form of snow.
其次,北极的大部分降水形式为雪。
3
When the air was warm, vapor containing the heavier isotope, oxygen-18, condensed and formed precipitation, in the form of snow, more readily than did vapor containing oxygen-16.