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When the portable luminaire has a flexible or articulated arm, the arm is to be bent before the7 X3 D. y$ Y9 ]/ Z
lamp is placed on the inclined plane, starting at the lower end of the arm, to form a quarter circle that a
$ j+ ~) a2 Y* \; r( Gline joining the ends of the arm make an angle of 45 degrees with the horizontal. When a flexible or: X6 g2 ~0 w; i
articulated arm is off-center with respect to the base, the arm is to be bent in the direction that results in% ^; w1 @" ~! z6 w( F& A% w
tip over. When the unit has more than one flexible or articulated arm, one of the arms is to be adjusted M- k+ s7 ^" s8 {' V
as for a unit having a single arm, and the other arm or arms are to be extended vertically.
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英文不好,如图示灯怎么操作呢
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