双语例句
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This film ACTS as a protective sealing agent in the vital area.
这一层膜对重要区域形成保护密封。
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The pore sealing agent may have acetone added to regulate viscosity.
根据封孔剂粘度要求， 可加入稀释液丙酮。
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The hole sealing agent has the advantages of simple construction, low difficulty to master, good sealing effect, safe use and low cost, etc.
本发明具有施工简单、易于掌握、封堵效果好、使用安全等优点，且成本低廉。
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