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When the portable luminaire has a flexible or articulated arm, the arm is to be bent before the9 l; Y# D$ y) d
lamp is placed on the inclined plane, starting at the lower end of the arm, to form a quarter circle that a
0 c' f' \/ I/ j+ ]/ l: @- ^8 zline joining the ends of the arm make an angle of 45 degrees with the horizontal. When a flexible or {" ^: V1 \6 j+ j: M
articulated arm is off-center with respect to the base, the arm is to be bent in the direction that results in M" E/ c9 ~, M- H( z
tip over. When the unit has more than one flexible or articulated arm, one of the arms is to be adjusted: a8 ?8 Y- N& H- W
as for a unit having a single arm, and the other arm or arms are to be extended vertically. U( }+ W" u% q2 Q8 x+ h
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英文不好,如图示灯怎么操作呢
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