In relationship to liquids, the term specific gravity is used to describe the weight or density of a liquid compared to an equal volume of fresh water at 4°C (39° F). If the liquid you are comparing will float on this water it has a specific gravity of less than one (1). If ...
请关闭浏览器调试工具后刷新重试
Animal clinical refractometer Tri Scale for Dog Cat Test of Serum protein and Urine specific gravity $7.49 - $8.93 Min. order: 1 piece 6in1 Intelligent Soil Tester Fertility/PH/Moisture/Tmep/Sunlight/Humidity Soil Meter for Agriculture Garden Farmer $7.20 - $7.75 Min. order: 1 piece Handheld ...
请关闭浏览器调试工具后刷新重试