heartwood的例句（heartwood在句子中的用法）

• Objective : To evaluate the wind - damage effects on quality of heartwood of Lignum Santali Albi. 目的: 评价风害损伤对檀香药材质量的影响.
• Heartwood from dark brown to purple brown, alternating stripes. 心材暗红褐至紫褐色, 具深浅交替条纹.
• Heavy wood with dark colored heartwood used for ornaments. 重硬且心材呈浓色者可供作木艺品制造用.
• Sapwood contains xylem vessels, but not as strong as heartwood. 边材含有木质导管, 但不如中心木质那样坚硬.