压力处理的木材含有有害的砷，西部红柏往往是在敏感的原始森林。
Pressure treated wood contains harmful arsenic, and western red cedar is often found in sensitive old-growth forests.
高效率红源彩色设备均采用砷化镓磷化镓磷化物的橙色发光二极管。
The High Efficiency Red source color devices are made with Gallium Arsenide Phosphide on Gallium Phosphide Orange Light Emitting Diode.
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