现代造纸中主要使用的材料是棉布或亚麻布和木浆。
The materials chiefly used in modern papermaking are cotton or linen rags and wood pulp.
现代造纸中主要使用的材料是棉布或亚麻布和木浆。
The materials chiefly used in modern papermaking are cotton or linen rags and wood pulp.
由于在二战末期金属缺乏,哈巴库克项目做了个尝试,用冰和木浆的混合物制造航空母舰。
With the scarcity of metal toward the end of World War II, Project Habbakuk was an attempt to create aircraft carriers out of pykrete, a mixture of ice and wood pulp.
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