Example post, I board a Hitachi UH171 Excavator backhoe, bucket at the rate of job decline, South Africa was able to meet the want, they soon become very slow motion bucket, he can not work properly.

• 例职，我局一台日立UH171反铲挖掘机，在工作中铲斗速度有所下降，当时尚能满足工作南非要，便不久后铲斗动作变得非常缓慢，竟无法正常工作。