usage charge

Using the new heat-resistant propellant as the chemical motivity of the bridge plug sitting tool, the charge configuration is designed, the bridge plugging operation is reliably accomplished in high and normal temperature condition, and the usage property corresponds with the product of the Baker corporation.

用新型耐热火药为化学动力源构建的桥塞座封工具装药结构，在高温、常温条件下能可靠完成桥塞座封操作，其使用性能与美国Baker公司相应产品相当。

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grr hc hco carrier security fee chasis usage charge custom clearance fee container yard

堆场船东安全费用居中费车架使用费清关费日本码头附加费

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Some may charge a nominal fee for low-volume usage.

某些低量的使用会收取少许的费用.

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