名词短语
中文翻译：Unknown
同义词：
['self-contained pump', 'self-priming pump']
例句：
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1.The self-protecting type pump is designed to prevent contamination during operation.
这种自我防护型泵设计用来在操作过程中防止污染。
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2. In the construction industry, self-protecting type pumps are commonly used for water and wastewater systems.
在建筑业中，自我防护型泵常用于水和废水系统。
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3.The engineers carefully selected the materials for the self-protecting type pump to ensure its durability and reliability.
工程师们仔细选择了泵的材料，以确保其耐用性和可靠性。