名词
中文翻译：十字长柄杖
同义词：
['cross-bar', 'cross-beam']
例句：
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1.The carpenter used a cross-staff to measure the length of the beam.
木匠用一根十字长柄杖来测量横梁的长度。
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2. The construction workers were using cross-staffs to lift heavy objects.
建筑工人正在使用十字长柄杖举起重物。
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3. The engineer was demonstrating how to use a cross-staff for measuring angles.
工程师在演示如何使用十字长柄杖测量角度。