筒体组合式液 压缸，采用多节缸筒与缸筒组合联接型式为圆锥面啮合定位联接；
The combined hydraulic cylinder adopts multiple sections of cylinder barrels which are meshed and fixed on a conical surface.
联接转换组合两个或更多个源属性的值，并将它们复制到一个目标属性。
A join transform combines the values of two or more source attributes and copies them to a target attribute.
重新排序和重新组合谓词是基于谓词的种类(本地或联接)和表引用。
Predicates are reordered and regrouped based on the kind of predicate (local or join) and the table reference.
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