- layingn. 产卵数；瞄准；布置；敷设; v. 放置；产卵（lay的ing形式）
laying out 定线；画样划线
laying down 放样；指定
pipe laying 输油管线
- oil
fuel oil 燃料油，燃油，重油
oil gas 石油气；油煤气
oil pipeline 油管；输油管
- oil pipeline油管；输油管
- oiled pipeline 油管；输油管
- oilingvegetable oil 植物油
diesel oil n. 柴油
oil tank 油箱，油槽
fuel oil 燃料油，燃油，重油
oil gas 石油气；油煤气
oil pipeline 油管；输油管
- pipelinen. 管道；传递途径；输油管
时 态: pipelined, pipelining, pipelines
gas pipeline n. 天然气管线，煤气管线；气体管道
oil
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