| 正面 | 8620.insulation 英 [ɪnsjʊ'leɪʃ(ə)n]美 [,ɪnsə'leʃən]     |
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| 背面 |      释义： 1. ac- "in addition" + cumul- + -ation.2. 含义：heap up, amass.n. 绝缘；隔离，孤立 例句： 1. High electricity bills point to a poor heating system or bad insulation.高额电费开支说明供暖系统不足或建筑隔热材料不良。 insulation 隔热，绝缘来自insulate,使隔热，绝缘。 insulation (n.)1848, "act of making (something) into an island," noun of action from insulate. Transferred sense attested by 1798. Electrical sense is from 1767. The concrete sense of "insulating material" is recorded by 1870." |