The finger scan procedure uses an electronic scanner which doesn’t contain any ink, liquid or chemical.
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The finger scan procedure USES an electronic scanner which doesn't contain any ink, liquid or chemical.
指纹扫描将使用电子扫描仪，不使用墨水，液体及化学药品。
We know they smear a liquid on the tube, but we don't know where they secrete it from or what its chemical composition is.
我们知道它们在管上涂抹了一种液体，但我们不知道它们从哪里分泌出这种液体，也不知道它的化学成分是什么。
The chemical composition of water remains constant whether it is in solid, liquid or gaseous state.
无论处于固态、液态或气态，水的化学成份都保持不变。
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