It is the key of the paper to design a type of detecting structure, which can avoid being contaminated by smeary oil, so that the on-line test of oil content in the wastewater can be realized in deed.
此次设计的关键之处是设计了一种避免油污污染测量探头的结构，从而使污水含油率检测能够实现真正的在线。
Lax regulation in China was a contributing factor: the contaminated products may have been mislabelled to avoid inspections, but such inspections were rare in any case.
中国的疏于监管是事件的推动性因素。受污染的产品可能为了避免检查贴错标签，但是这种检查在在任何情况下都是很罕见的。
Lax regulation in China was a contributing factor: the contaminated products may have been mislabelled to avoid inspections, but such inspections were rare in any case.
中国的疏于监管是事件的推动性因素。受污染的产品可能为了避免检查贴错标签，但是这种检查在在任何情况下都是很罕见的。
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