词典 / 土壤学
period of crop-rotation
暂无补充释义。
incubation period
initial period
perinatal period
last menstrual period
preheating time【冶】;warm-up period【电子】;warm-up time【电子】
exhibition period【贸易】
right ventricular pre-ejection period
half life period
补充或纠正词条 →