名词
中文翻译：半自动砂混合机
同义词：
['semi-automatic concrete mixer', 'semi-automatic asphalt mixer']
例句：
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1. This semi-automatic sand mixer is veryefficient in mixing the sand and gravel.
这款半自动砂混合机在混合沙子和砾石方面非常高效。
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2. The construction companyused this semi-automatic sand mixer to prepare the foundation for their newbuilding.
这家建筑公司使用这款半自动砂混合机来准备他们新大楼的基础。
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3.The engineer tested the performance of the semi-automatic sand mixer before installingit in the construction site.
工程师在安装这款半自动砂混合机之前测试了其性能。