“well-rig”的概念、定义、翻译、参考文献-科学参考

单词	well-rig
释义	well-rig Encyclopedia 工学水利机械释 well-rig打井机械用来开发地下水资源的机械，包括各式钻机（又称打井机）、水泵（泥浆泵），以及与其相配套的卷扬机等。
随便看	locally convex space locally convex structure locally convex [topological linear] space locally convex topological linear space locally convex topology locally countable base locally countable set locally cyclic group locally dense leaf locally equicontinuous semigroup locally equivalent structures locally Euclidean locally Euclidean group locally Euclidean space locally factorial ring locally faithful representation locally finite locally finite algebra locally finite base locally finite category locally finite complex locally finite covering locally finite family locally finite family of sets locally finite graph

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