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。

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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.

语言卡作为管道弧焊机器人的一个子系统，采川严格的抗干扰技术与主机通信，以满足焊接现场干扰强的情况。

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The district commander said that about 15 minutes later, a phone call was made to the Samaritans, warning that a pipe bomb had been thrown in the area.

BBC: Pipe bomb thrown at police in Belfast 'reckless bid to kill'