... 闸阀和截止阀（金属与金属连接）的阀座不具备不透气关闭的性能。Gate and globe (metal to metal) seats 操作简便 Ease of Operation 成本 Cost ...
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Ion exchange technology is easy to operate. The abroad application of ion-exchanged waveguide is borne out by suitable coupling to fiber, low cost, ease of operation and stabilization.
离子交换技术制备玻璃基光波导工艺简单、易于操作,而且制得的波导适于与光纤耦合、损耗小、性能可靠,因而被广泛应用。
参考来源 - 离子交换玻璃基光波导研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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