它是基于证据如异丙酚生产，减少盐水袋、异丙酚与CM的手指印刷品瓶，穗眼泪。
It's based on the evidence such as the propofol shipments, a cut saline bag, propofol bottle with CM's finger prints on it and a spike tear.
可供选择的方法是把板子（锌板）放入密封的塑料袋中再把它放入盐水中。
The alternative way to do this is to cover the plates in a sealed plastic bag and put it in the salt water.
你要使用正确的塑胶袋，或是把金属片放在塑胶袋里面然后在放入盐水中。
You have to use the right kind of plastic. Or put the plate in the plastic bag in the salt water. If the conditions are correct you will get a pure CO2.
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