annual ring

基本解釋

The image of time turns green. The songs of tender leaves and new leaves circumrotate along the annual ring: happy New Year.
歲月的意象漸漸綠了，嫩葉和新葉的歌，沿著年輪急速地旋轉(zhuǎn)，新年快樂(lè)！
The results showed that wood density was negatively significant correlated to annual ring width of the same age range at the early stage of tree growth.
結(jié)果表明火炬松林分早期生長(zhǎng)階段年輪寬度與木材基本密度間存在著顯著的負(fù)相關(guān)。
Its root tuber has multilayer concentric circularity similar to "annual ring lines" at the initial stages of development, and grows and enriches at the same year.
塊根在發(fā)育的初期具有類似“年輪紋路”的多層同心圓結(jié)構(gòu)，當(dāng)年產(chǎn)生，當(dāng)年充實(shí)。

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a ring of wood indicating one year's growth, seen in the transverse section of stems and roots of woody plants growing in temperate climates (Also called tree ring)