It provides theoretical data for design of anticoincidence shielded gamma ray spectrometer.

可为设计符合屏γ谱仪提供理论数据。

He shielded his eyes from the sun.

他把手放在眼前遮住太阳光。

He was shielded by his mother from punishment.

他母亲保护他, 使他免受惩罚。