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When the portable luminaire has a flexible or articulated arm, the arm is to be bent before the
5 V1 b6 c% j# L! ?8 D1 glamp is placed on the inclined plane, starting at the lower end of the arm, to form a quarter circle that a8 l2 }8 P/ H3 R2 r
line joining the ends of the arm make an angle of 45 degrees with the horizontal. When a flexible or
w* r8 T8 s$ F: e4 _" d* Oarticulated arm is off-center with respect to the base, the arm is to be bent in the direction that results in. M U( U2 F& t' I2 b R# ?' J7 ^! _
tip over. When the unit has more than one flexible or articulated arm, one of the arms is to be adjusted
( J, _, Y$ m2 g, |$ uas 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& D; O* j6 H" F* s
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