O 开头单词
oil shale retort [化学]油页岩干馏炉
oil shale residue [机械工程]油页岩灰渣
oil shale recovery [土木建筑工程]油页岩开采
oil shale n. [油气] 油页岩
oil sesame [经济学]麻油
oil separator [车辆][油气][机] 油分离器；[车辆][油气][机] 油气分离器
oil separation 油分离
oil seepage 油漏，油渗漏
oil seal ring 油封环
oil seal retainer [交通运输工程]护油圈油封护圈
oil seal [机] 油封
oil scrubber [经济学]油洗涤器
oil scraping ring [机械工程]刮油环
oil scraper ring 刮油圈；[机] 刮油环
oil scraper piston ring [经济学]刮油活塞环
oil save-all [交通运输工程]防止溅油装备
oil saponification value [数学]油皂化值
oil sand [矿物] 油砂
oil rub resistance [材料科学]抗油污