“Sealing hermetically” in Japanese
Short answer
Sealing hermetically in Japanese is “密封” (mippuu). Full meaning: sealing hermetically, sealing (up).
Other ways to say “Sealing hermetically” in Japanese
厳封
genpuu sealing hermetically
密栓
missen stopping tightly, sealing hermetically
密閉
mippei shutting tightly, making airtight, sealing hermetically
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