drill feed 中文意思是什麼
drill feed
解釋
鑿巖機推進器-
Screw - feed diamond drill
螺旋給料式金剛石鉆機 -
The problem of torque increase and drill fracture during the process of deep well drilling was analyzed, and a safety protection and control technique was introduced, where a torque sensor was fixed between drilling bar and motor axis, while an electromagnetic clutch was fixed in the transmission chain of feed system
摘要對深孔鉆削過程中出現扭矩增大及折斷鉆頭鉆桿問題進行了分析，介紹了一種鉆桿主軸與電機軸的連接中安裝扭矩傳感器，進給系統的傳動鏈中安裝電磁離合器的深孔鉆削安全保護與控制技術。 -
Ash trees can resist many dieases, but they can not resist the emerald ash borer. it lays eggs on the bark, then the young larva drill into and feed on the inner bark. this harms the ability of the tree to transport water and nutrients. the insect is attacking tree farms and can also spread when logs and firewood are transported
灰樹可以抵禦很多疾病，但是它們不能抵禦灰蟲.灰蟲在樹皮上孵蛋，那麼幼蟲鉆入樹皮並以內部樹皮為食.這個破壞了樹木傳輸水和營養的能力.昆蟲正在攻擊樹木的耕種，並且當圓木和柴火運輸的時候它們就能傳播 -
Push feed drill
推進式鑿巖機
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