名词
中文翻译：下游沙注入器
同义词：
['sand injection device', 'sand injection system例句：1. The downstream sand injector is used to control the flow of water and sand during construction.（下游沙注入器用于控制施工过程中水和沙的流动。）2. The engineer designed the downstream sand injector to ensure efficient sand removal from the riverbed.（工程师设计了下游沙注入器，以确保从河床高效地移除沙子。）']
例句：
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1. The downstream sand injector is used to control the flow of water and sand during construction.
下游沙注入器用于控制施工过程中水和沙的流动。
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2. The engineer designed the downstream sand injector to ensure efficient sand removal from the riverbed.
工程师设计了下游沙注入器，以确保从河床高效地移除沙子。
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3. The downstream sand injector was crucial for maintaining the stability of the newly constructed dam.
下游沙注入器对于保持新建造大坝的稳定性至关重要。