代料栽培
参考答案:
在食用菌生产中,用农作物秸杆、废料等代替段木进行栽培的一种食用菌栽培形式,如袋料、畦床栽培。
If you don't mind a little cold, you can enjoy different winter scenes in Huangshan and save some money
on tickets and _____ due to the weather. [ ]
A. accommodation
B. occupation
C. equipment
D. furniture
当精密坐标镗床工作台或滑座纵、横向()调整不当,会使工作台滑座进给失灵,出现爬行现象。
A.压板
B.镶条
C.导轨
D.齿条