...t of well)洗井作业(clean out operation)清砂(clean out sand)余隙(clearance volume of pump)抽油泵间隙等级(clearance grade)4 }" A" z" \* t2 N( e: N 油藏参数
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Grade Clearance 离地间隙
minimum grade clearance 最小离地间隙
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For fuller information on the special requirements of bearing running clearance, inscribed circle and accuracy grade, please contact this company.
对于轴承游隙、内切圆、精度等级特殊要求的详细情况应与本公司联系。
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