One or more layers of living and functional sapwood cells are periodically converted to heartwood.
每個(gè)生長(zhǎng)周期都有一或多層活的邊材細(xì)胞轉(zhuǎn)變成心材.
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Heartwood is the mature wood, which is often darker, extending from the sapwood to the pith.
心材通常是成熟的木材部分, 通常色澤較暗, 范圍從邊材一直到髓心.
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Thecolor of sapwood of Chinese white poplar among trees has significant difference.
毛白楊邊材材色株間存在顯著差異.
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Sapwood pale colored with red vessel stripes.
邊材色稍淺,僅導(dǎo)管槽帶有紅色.
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Sapwood contains xylem vessels, but not as strong as heartwood.
邊材含有木質(zhì)導(dǎo)管, 但不如中心木質(zhì)那樣堅(jiān)硬.
辭典例句
We all know that the price of heartwood is higher than that of sapwood.
我們都知道,心材價(jià)格一向高于邊材價(jià)格.
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Sapwood is the lighter colored wood growing from inside the bark to the heartwood.
邊材色澤較淺,是從樹皮到新材之間的木質(zhì)部分.
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Heart sapwood distinction was not obvious, chestnut brown.
心邊材區(qū)別不明顯, 材色栗褐色.
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