Dismantled parts of a pipe were dumped on sidewalk, thus besides there were no warning shouts.
甚至没有人发出警告的呼喊，被拆除的部分管道就被直接倾倒在了人行道上。
2
Considering intensive noises at the welding locale, the speech warning card which is a son system of the pipe arc welding robot communicate with the father computer by strict anti-jamming technique.