More robots need not, for instance, bode ill for all blue-collar workers, merely those with repetitive, assembly-line jobs.
比如，机器人的增多并不一定意味着蓝领工人就会失业，下岗的仅仅是那些在流水线上从事重复性工作的工人。
Welding robots increasingly are being employed on automobile assembly lines, as quality levels are more reliable than with human welders.
汽车组装线上越来越多得使用焊接机器人，机器焊接的质量水平比人工焊接更可靠。
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