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.
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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