...，对于以推出全天候DC闻名的Olympus，绝对是经验独到，今次TG-810更选用全新的双重上锁（Double-Lock）及密封（Double-Sealing）设计，新增了转盘式的上锁方式，并需要手动开关，避免防水盖因意外撞击而自动打开，同时全机只设有一个防水机盖，将入水的机会进...
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double - sealing 双密封
double sealing 双密封
double sealing device 双密封装置
double-sealing fracturing 双封压裂
double sealing improvement 双密封改造
Steel double sealing cap 钢质双层密封盖
double-sealing and single-stick 双封单卡
The thermos cup of the utility model has a double-sealing function, which can enhance insulation and leakage-proof performances of the thermos cup.
本实用新型的保温杯具有双重密封功能，可提高保温杯的保温的防漏性能。
Field application results show that the string of double-sealing and single-stick subsection fracturing can meet the demands of pressurization behavior and sand amount.
现场施工效果表明，双封单卡分段压裂管柱在承压性能及过砂量要求上，能满足要求；
Usage: suitable for double coils open armature iron core sealing after wire embedded.
用途：本机适用于双圈开口电枢铁芯嵌线后的封口。
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