色婷婷成人AV一区二区三,在线操极品尤物,久久久久久超碰偷拍精品,精品少妇中文一区二区,中文字幕第一页在线,久久精品在线观看日韩视频,日本口工视频三区四区,精品人妻一区二,九九热视6在线观看

It was a hot summer day. On July 6-7, the Volvo Construction Equipment EC950E engine timing plate replacement and EMO61 intake valve bridge technical transformation training course was held as scheduled in Jinan Tianye Maintenance Workshop. Volvo Construction Equipment Technical Manager Kong Gaowei and technical expert Bob attended the training with trainees from dealers from all over the country.

This training adopts the teaching form of "theoretical explanation + on-site practice", and Bob conducts on-site teaching for the trainees. Focusing on the replacement of the timing plate of the EC950E engine and the technical modification of the EMO61 intake valve bridge, the trainees were given detailed answers to their questions and each trainee was asked to perform the operation in turn.

Through this training, the trainees have a systematic and professional understanding of the replacement of the timing plate of the EC950E engine and the technical modification of the EMO61 intake valve bridge, and the trainees' business ability, practical ability and comprehensive quality have been further improved.