请输入您要查询的英文单词:
单词
pentamethylene
释义
pen·ta·methylene
\“+\
noun
Etymology:
International Scientific Vocabulary
penta- + methylene
1.
:
cyclopentane
2.
:
the bivalent radical −CH
2
CH
2
CH
2
CH
2
CH
2
− derived from normal pentane by removal of one hydrogen atom from each end carbon atom
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更新时间:2024/9/20 0:47:42