| 单词 | closed-ring |
| 释义 | closed-ring (once / 590966 pages) adj WORD FAMILY closed-ring USAGE EXAMPLESThey all show mutarotation and exist in two modifications, indicating that the component groups have the closed-ring arrangement. Thatcher, Roscoe Wilfred, The Chemistry of Plant Life(2010) The oxygenated essential oils may be either alcohols, aldehydes, ketones, acids, esters, or phenols, derived from either five-membered or six-membered closed-ring hydrocarbons. Thatcher, Roscoe Wilfred, The Chemistry of Plant Life(2010) These are a group of strong vegetable bases whose nitrogen atom is a part of a closed-ring arrangement. Thatcher, Roscoe Wilfred, The Chemistry of Plant Life(2010) adj having atoms linked by bonds represented in circular or triangular form Syn closed-chain cyclic of a compound having atoms arranged in a ring structure |
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