常见例句The base line can be set out as a single or double chain.基線可作爲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，搆成雙鏈，也是被陽離子聯系在一起的。 返回 double-strand