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The bucking bar is a specially shaped solid block of metal.
铆钉顶棒是一种特殊形状的金属实心块。
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The analysis chamber consists of a metal block which houses an annulus.
分析室由金属块组成，内装一个环。
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The analysis chamber consists of a metal block which houses an annulus.
分析室由金属块组成，内装一个环。
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