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When the portable luminaire has a flexible or articulated arm, the arm is to be bent before the- t! W5 ]7 f0 F
lamp is placed on the inclined plane, starting at the lower end of the arm, to form a quarter circle that a
% t3 a; v/ c; g# V2 k( \, Pline joining the ends of the arm make an angle of 45 degrees with the horizontal. When a flexible or$ W: ^9 D+ y7 o9 Z( S
articulated arm is off-center with respect to the base, the arm is to be bent in the direction that results in
3 \( n& J" V% }& b1 f- |! ftip over. When the unit has more than one flexible or articulated arm, one of the arms is to be adjusted
3 o- B7 k1 A. `' q7 t' has for a unit having a single arm, and the other arm or arms are to be extended vertically.
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4 p$ e5 [, D1 n+ Y2 I ]3 B英文不好,如图示灯怎么操作呢
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