TESTING INDICATOR FOR DETERMINING WATER HARDNESS AND METHOD OF MAKING SUCH INDICATORS

• 1. 机内测试指标确定方法和用于航空产品的机内测试方法 [P] . 中国专利： CN113094940B . 2022.02.11
• 2. 机内测试指标确定方法和用于航空产品的机内测试方法 [P] . 中国专利： CN113094940A . 2021-07-09
• 3. TESTING INDICATOR FOR DETERMINING WATER HARDNESS AND METHOD OF MAKING SUCH INDICATORS [P] . PL244701A1 . 1985-06-04

  机译： 用于确定水质硬度的测试指标和制作此类指标的方法

• 4. TESTING INDICATOR FOR DETERMINING WATER HARDNESS AND METHOD OF MAKING SUCH INDICATORS [P] . PL244700A1 . 1985-06-04

  机译： 用于确定水质硬度的测试指标和制作此类指标的方法

• 5. TESTING INDICATOR FOR DETERMINING WATER HARDNESS AND METHOD OF MAKING SUCH INDICTAORS [P] . PL141088B1 . 1987-06-30

  机译： 用于确定水质硬度的测试指标和制作此类指标的方法

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• 5. Indicators for Monitoring Water, Sanitation, and Hygiene: A Systematic Review of Indicator Selection Methods [O] . Stefanie Schwemlein, Ryan Cronk, Jamie Bartram 2016

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