annual amount of precipitation年降水量;年雨量
the amount of precipitation降水量
f amount of precipitation降水
low amount of precipitation少降水量
a ual amount of precipitation年雨量
annual l amount of precipitation年降水量
amount of oxygen precipitation析出氧氣量;加工量
amount t of precipitation降水量
amount of asphaltene precipitation瀝青質沉淀量