灰胶纸 meaning in English

gypsum

His eyes sought answer from the river and saw a rowboat rock at anchor on the treacly swells lazily its plastered board
他扫视着河面，想寻求个答案。只见一般划艇停泊在形似糖浆的汹涌浪涛上，懒洋洋地摇晃着它那灰胶纸拍板。
A rigid board made of layers of fiberboard or paper bonded to a gypsum plaster core , used instead of plaster or wood panels in construction to form walls
石膏灰泥板，灰胶纸柏板由石膏灰泥作芯板结合几层纤维板或纸浆板制成的硬板，在建筑中用于代替灰泥或木板来建造墙壁