O 开头单词
oil shale retort [化學]油頁巖乾餾爐
oil shale residue [機械工程]油頁巖灰渣
oil shale recovery [土木建築工程]油頁巖開採
oil shale n. [油氣] 油頁巖
oil sesame [經濟學]麻油
oil separator [車輛][油氣][機] 油分離器；[車輛][油氣][機] 油氣分離器
oil separation 油分離
oil seepage 油漏，油滲漏
oil seal ring 油封環
oil seal retainer [交通運輸工程]護油圈油封護圈
oil seal [機] 油封
oil scrubber [經濟學]油洗滌器
oil scraping ring [機械工程]刮油環
oil scraper ring 刮油圈；[機] 刮油環
oil scraper piston ring [經濟學]刮油活塞環
oil save-all [交通運輸工程]防止濺油裝備
oil saponification value [數學]油皂化值
oil sand [鑛物] 油砂
oil rub resistance [材料科學]抗油汙