| 释义 |
试纸shìzhǐ用指示剂或试剂浸过的干燥纸条,用来检验溶液的酸碱性和某种化合物、元素或离子的存在。如石蕊试纸、碘化钾淀粉试纸等。{test paper; paper saturated with a reagent, such as litmus test paper and potassium iodide starch test paper, used to test the pH value of a solution and the presence of some kind of chemical compound, element or ion} |