It provides theoretical data for design of anticoincidence shielded gamma ray spectrometer.
可为设计反符合屏蔽γ谱仪提供理论数据。


,屏蔽了
,防
,铠装

电弧焊
焊;[化]气体
电弧焊
焊
线
金属极电弧焊It provides theoretical data for design of anticoincidence shielded gamma ray spectrometer.
可为设计反符合屏蔽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
他, 使他免受惩罚。
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