从那以后他们拆掉了简陋的棚屋。They have since knocked down the shack.两间空置的棚屋里发生了火灾。The fire broke out in two unoccupied cabins.这棚屋是用附近森林里长的树木建造的.The hut was constructed from trees that grew in the nearby forest....
Lignin of rice husk high boiling point solvent ( HBS ) digesting process with aqueous solvent of ethanediol.以乙二醇水溶液为溶剂,稻壳为原料制备木质素.By the innumerable tiny lignin granulometric composition lignin dust may say is blocks the...