4.5． 机械杂质(Mechanical Impurities)：机械杂质会堵塞过滤网，造成抽油泵磨损和喷油嘴堵塞，影响正常燃烧。 用于燃料油储存的油罐主要有5000吨和10000吨两种。
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Water and mechanical impurities 水分及机械杂质 ; 水分及
No Obvious Mechanical Impurities 无明显机械杂质
1 inspection items for appearance, melting point, moisture, mechanical impurities.
可检项目为外观、滴熔点、水分、机械杂质。
Precision multi-stage filtration system can remove mechanical impurities in oil effectively.
精密的多级过滤系统，能有效除去油中的机械杂质。
The damage during hydraulic fracturing mainly included clay swelling and grain migration, built up created by mechanical impurities, the damage of fracture conductivity and so on.
水力压裂过程中存在的损害主要包括粘土膨胀与颗粒运移损害、机械杂质引起堵塞损害、支撑裂缝导流能力的损害等。
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