标题: 请教如下什么意思？ [打印本页] 作者: 秋日私语123 时间: 2008-9-16 08:47 标题: 请教如下什么意思？ 60.1.2 Mating attachment plugs with solid blades are to be inserted into the contact openings of three ofthe six devices. The devices are then to be placed into an environmental chamber and subjected to thefollowing conditions:$ F7 q7 K% B: Z) `6 E. B
a) 4 hours at a temperature of 75 ±1°C (167 ±1.8°F) at a relative humidity of 92 ±3 percent.9 X8 q% h& c) V$ f0 w% a
b) 16 hours at a temperature of 75 ±1°C (167 ±1.8°F) at a relative humidity of 40 ±3 percent. 3 `" L: b3 F: r7 h! a# q6 ~, {c) 4 hours at a temperature of 30 ±1°C (86 ±1.8°F) at a relative humidity of 60 ±3 percent.! `: }: N. G# b