The researchers note that without stimulation, gene expression was similar in COPD patients and controls.

研究人员指出，无刺激时COPD患者和对照组基因表达相近。

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The toxicological tests showed that it was an actual non toxic agent without stimulation to skin, accumulative toxicity and mutagenicity.

毒性检测结果表明属实际无毒类，对皮肤无刺激，无蓄积毒性和致突变性。

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So that the blood circulation more efficient, comfortable pro-and skin on the body without stimulation, to pay All the requirements of environmental protection and human health.

使血液循环更加通畅，舒适亲和皮肤对身体无刺激，付合环保及人体健康要求。

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Natural gas from the type of reservoirs we have in the United States cannot be produced economically without these well stimulation activities.

FORBES: Vocal And Tiny Minority Propagates Natural Gas Disinformation