负背景效果NBE ？
Under the above system background, loses money to be listed's negative influence is big.
在上述制度背景下，亏损对上市公司的负面影响非常大。
The effects of the positive and negative ion background on the discharge path are studied.
用实验方法研究了正、负离子背景对放电路径的影响。
The effects of the positive and negative ion background on the discharge path are studied.
用实验方法研究了正、负离子背景对放电路径的影响。
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