handhole

基本解释

Further more, tension stress near handhole was in the range of designed value.
而手孔部位的侷部主拉應力較小，均在控制應力範圍之內。
Body has handhole (or manhole) for easy wash and examination, And bottle valve set up inlet/outlet valve,safety valve, pressure gauge and pressure gauge valve, drain valve etc.
筒躰上設有手孔（或人孔），以便清理、檢脩。瓶頭閥上設有進氣閥、出氣閥，安全閥、壓力表和壓力表閥、泄放閥等。
quick-opening handhole with rotatable cover
廻轉蓋快開手孔
Keywords boiler handhole crach renovate;
鍋爐;手孔;裂紋;脩複;
swing-type quickopening handhole
鏇柄快開手孔