名词
中文翻译：筛上延伸部分
同义词：
['upper sieve part', 'upper sieve extension例句：1. The upper sieve extension is where the grain passes through to be cleaned.（筛上延伸部分是谷物通过的通道，用于清洗。）']
例句：
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1. The upper sieve extension is where the grain passes through to be cleaned.
筛上延伸部分是谷物通过的通道，用于清洗。
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2.The engineer designed the upper sieve extension to improve efficiency.
工程师设计了筛上延伸部分以提高效率。
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3. The upper sieve extension was a critical component of the machine's design.
筛上延伸部分是机器设计中的关键组成部分。