proof

证据, 证明, 试验, 检验, 考验

any factual evidence that helps to establish the truth of something; a formal series of statements showing that if one thing is true something else necessarily follows from it; a measure of alcoholic strength expressed as an integer twice the percentage of alcohol present (by volume); (printing) an impression made to check for errors

不能透入的, 证明用的, 防...的, 耐...的

检验, 试验, 校对, 使不被穿透

证明；证据