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growth ring

/ˈɡrəʊθ rɪŋ/

翻译: 树木、树枝或树根横切面上可见的环状结构,代表一年的生长。每一环通常由浅色的早材带和深色的晚材带组成,通过数环数可以判断树木的年龄。

1 个条目

phrase

/ˈɡrəʊθ rɪŋ/B2formalscientific
  • zh树木、树枝或树根横切面上可见的环状结构,代表一年的生长。每一环通常由浅色的早材带和深色的晚材带组成,通过数环数可以判断树木的年龄。

A ring visible in a cross-section of a tree trunk, branch, or root, representing one year's growth. Each ring typically consists of a light band (earlywood) and a dark band (latewood), and counting them helps determine the tree's age.

  1. Annual tree ringB2formal

    A ring visible in a cross-section of a tree trunk, representing one year's growth.

    zh年轮

    • Scientists count growth rings to determine the age of a tree.
    • The width of a growth ring indicates the climate conditions of that year.
    • A dark growth ring often marks the end of a growing season.