密度调节材料 density controlling material

无节材 clear wood

细节材料 minor details

节材理念 energy saving concept

节材节能 saving metal material and energy

多节木材 knottywood ; [木] branchy wood

木材松节油 wood turpentine oil ; wood turpentin

材质节点 Materials ; Material node

节能建筑材料 Materials for energy efficient buildings

节能技术和材料 Energy efficient technology and materials