(a) a chemical test performed using a single drop or very small sample of the substance to be tested, typically with a reagent that produces a…
| 单词 | θ86407 |
| 释义 | the world > action or operation > endeavour > trial or experiment > trial, test, or testing > [noun] > test or testing for truth or correctness > quick check on random sample (3) spot test1872 (a) a chemical test performed using a single drop or very small sample of the substance to be tested, typically with a reagent that produces a… spot check1918 A check or inspection made on a random or representative sample of a group, or one conducted without prior warning. spot-checking1919 The action of carrying out a spot check on a person, place, or thing. |
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