Crop growth period  作物生育期; 作物生长期

crop rotation period  种植周期

Growing period of crop  作物发育期

Period of crop rotation  轮作年限

period of harming crop  危害期

precipitation time series of crop growth period  作物生育期降雨量

feed crop of after crop  后浊料罪

grain crop-cash crop-forage rotation  粮经饲三元结构

Carboniferous Period—Permian Period  石炭－二叠系

Demand charge shift from the on-peak period to the off-peak period  移峰填谷

middle_period and last_period state_mines  中晚期国有矿山

Paleogeng Period-Neogene Period  古近—新近纪

period shut-down (period trip)  周期保护停堆

period-to-period value changes  各期间价值变化

Spring and Autumn period and Warring States period  春秋战国时期

the Spring and Autumn Period and the Period of War  春秋战国

A REVIEW TO TREE-CROP INTERCROPPING IN CHINA  中国农林间作研究综述; 凡职安局信纳─

ability of salt-tolerance of crop  作物耐盐力

Above ground standing crop  地上现存量