Aronson said the key to his robotic bending cell is that a nearby press brake operator oversees a manual brake and the automated cell.

阿伦森说他的自动化单元的核心是：可以由一个操作工人就近照看一台手动折弯机和一台自动化单元。

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Making an automated bending cell work is a matter of having an experienced press brake operator willing to make the automation work, according to Aronson.

阿伦森介绍说，让一个自动化折弯单元工作起来，是一个让经验丰富的折弯工人接受机器人替代人工的过程，因为自动化必然造成工作机会的削减，这会招致工人们的集体排斥。

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Press and hold brake pedal in applied position.

踏下并保持煞车踏板在使用位置。

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The cause of the crash is not yet clear, but California Highway Patrol spokesman Mario Lopez was quoted by the Associated Press as saying that the bus driver reported brake problems as he descended a road leading from the Big Bear ski resort area.

BBC: California bus crash kills eight and injures dozens