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When the portable luminaire has a flexible or articulated arm, the arm is to be bent before the
7 P8 V$ V7 ?* l4 B# ~% I/ y# `( ?lamp is placed on the inclined plane, starting at the lower end of the arm, to form a quarter circle that a) k1 S( R0 C2 u, z* H7 S) ~! v
line joining the ends of the arm make an angle of 45 degrees with the horizontal. When a flexible or
7 U9 U( m6 {; ]8 A) l2 n' J" ~$ ?. Xarticulated arm is off-center with respect to the base, the arm is to be bent in the direction that results in
! B' P, K1 E1 q: a! _% F8 h2 e( Jtip over. When the unit has more than one flexible or articulated arm, one of the arms is to be adjusted
* O5 X+ q" ]+ K4 Fas 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: N" r$ h* \; k5 D K1 R, O! E
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