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2.7 每班结束，清理打扫除尘，并在外露的滑动轨道上涂上一层油，保持机床润滑。
2.7 the maintenance should be carried out such as cleaning room, coating the sliding track with oil, keep the machine lubrication when off duty.
Last Update: 2012-10-09
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仍在倾斜轨道上运行的法国卫星
french satellites in an inclined orbit and still operational
Last Update: 2016-12-04
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