sap wood造句

• When in a growing stage, with very little sap wood, a chestnut tree contains more timber of a durable quality than an oak of the same dimensions.
• The wood itself is light in color, usually light brown, tinged with red, and with thick light sap wood, and its weight is per cubic foot.
• It has thin scaly brown bark, covering a thin layer of off-white sap wood with a darker heartwood that varies in color from brown to a magenta / purplish hue.