In the light of the practice of Shanghai subway project, this article describes the completely closed horizontal freezing reinforcing technique in the aspects of design, construction and effect.
结合上海地铁建设工程实际，从工程设计、施工、加固效果等方面阐述了全封闭水平冻结加固技术的应用。
The normal-closed electromagnetic valve has reasonable structure design and good close property ofthe valve port to prevent leakage completely.
它结构设计合理，阀口关闭性良好，确保无任何泄漏。
The normal-closed electromagnetic valve has reasonable structure design and good close property ofthe valve port to prevent leakage completely.
它结构设计合理，阀口关闭性良好，确保无任何泄漏。
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