needle board 中文意思是什麼

needle board 解釋
劈瓣機
  • needle : n 1 針 縫針；編織針。2 （注射、唱片等的）針；磁針 羅盤針 指針。3 尖巖 尖峰；方尖碑；【化、礦】針...
  • board : n 1 板〈通常指寬4英寸半以上厚2英寸半以下者〉，木板；紙板。2 （廣告）牌；（棋）盤；〈口語〉配電盤...
  1. By study on rice direct planting machines existed, the baby rice seedling direct planting machine reformed from rice transplanting machine has a long term potential. it has unique and reasonable design both in eight separable boxes filled baby rice seedling and the sowing needles fixed on sowing wheel. but it still existed some problems of designs and manufactures, for example the machine could not going ahead because of the mud assembled on the boat board, the interference between the sowing needle and the check curtain etc. all this aff

    對現有水稻直播種植機械的研究發現，水稻直播種植機械在原有的水稻插秧機的基礎上改造具有較大的發展前景，採用的份隔式乳芽箱和撥苗輪的撥針的設計較為獨特，也較為合理，但還存在某些設計和製造問題，如船板的淤泥現象，撥針和秧簾的干涉現象較為嚴重等，這些都嚴重影響了直播機的工作性能。
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