... 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
The software has more accuracy, practicality, versatility and ease of operation. The simulation results can better guide the field work and laboratory research.
该软件具有较好的准确性、实用性、通用性和易操作性，其仿真结果能较好地指导现场工作和实验室研究。
As to the preference of industrial products, people no longer simply care for functional perfection of the products, but pay more attention to the beauty in their design and the ease of operation.
对工业产品的选择倾向上，人们已不再单纯追求产品的功能完美性，而越来越关注产品外观的愉悦性以及操作的舒适性。
S. bearing guided for ease of operation and long life.
轴承导向，操作方便、寿命长。
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