Old Chemistry and Metallurgy. Free from corrosive salt, sulphur, acid, etc. In modern use also in the Oil Industry, of petroleum or natural gas…
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| 单词 | θ217224 |
| 释义 | society > occupation and work > materials > fuel > oil or types of oil > [adjective] (1) sweet1919 Old Chemistry and Metallurgy. Free from corrosive salt, sulphur, acid, etc. In modern use also in the Oil Industry, of petroleum or natural gas… |
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