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单词
butylene-2
释义
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butylene
n. [化]丁烯
butylene-2
网络释义
短语
1
2-butylene
丁烯 ; 丁烯化学品
2
2-methyl-2-butylene
甲基
3
methyl-2-butylene
甲基
双语例句
1
The isomerization of
2
-methyl 1-
butylene
(2MB1) to
2
- methyl
2
-
butylene
(2MB2) was carried out over a resin catalyst.
在酸性树脂催化剂上进行了2 甲基1 丁烯（2MB1）的异构化，得到了高2 甲基2 丁烯含量的异戊烯产品。
2
The toxicity of poly 1,
2
-propylene adipate and poly 1, 3-
butylene
phthalate were determined by the acute toxicity tests.
通过急性经口毒性试验测定了己二酸聚1,2 -丙二醇酯和邻苯二甲酸聚1,3 -丁二醇酯的毒性。
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restraint cylinder
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更新时间：2026/5/14 6:03:26