...用本实用新型 With The Application ; By The Utility Model 利用本实用新型 By The Utility Model ; Through The Utility Model ..
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Water flows through the utility model from bottom to top, and dirt is attached to the lower end of the filter layer, so that the utility model is easy to wash.
本实用新型的水流为下进上出式，污垢附着过滤层下端，故极易冲洗。
The mathematical model based on orthogonal function as fan characteristic curve fitting is introduced and its precision and utility is validated through the calculating example.
介绍了采用正交函数法快速拟合通风机性能曲线的数学模型，通过算例验证了此数学模型的精确性和实用性。
The company has international and domestic invention and utility model patent number, and through ISO9001 international quality management certification.
公司拥有国际国内发明和实用新型专利多项，并通过ISO 9001国际质量管理认证。
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