head pivot point 头的转动中心
Double Pivot Spindle Head 双摆角结构
coupler head upper pivot lug 上钩耳
canal head pivot 渠首枢纽
head of pivot 首部枢纽
The complete package: The Circa 62 No. 3 with head cover and pivot tool.
完整的包的奇尔卡62号3头：覆盖面和枢纽的工具。
The optimal sprinkler configuration of center-pivot irrigation system can be obtained with the model, at the same time, the demand flow and head pressure were given.
利用该方法和数学模型可确定中心支轴式喷灌机的最佳喷头配置方案，同时得出与该方案相匹配的机组入机流量和入机压力。
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