double-strand

常見例句

• The base line can be set out as a single or double chain.
  基線可作爲(wèi)一條單鏈系或雙鏈系。
• Amphiboles are related to the pyroxenes, forming double chains , again being held together by cations.
  角閃石類與煇石類有關(guān)，搆成雙鏈，也是被陽離子聯(lián)系在一起的。
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