Kuthiwani uma umzimba we-valve ugqwala? Incazelo enemininingwane yemodi yokuxhuma yedivayisi ye-multi-turn valve drive (I)
Kuthiwani uma umzimba we-valve ugqwala? Incazelo eningiliziwe yemodi yokuxhuma yedivayisi ye-valve drive eshintshashintshayo (I) Ngokuqhubeka kwamakhono, ukukhiqizwa kwezimboni zokushisa okuphezulu, ukucindezela okuphezulu, amakhaza ajulile, i-vacuum ephezulu, ukugqwala okunamandla, i-radioactive, i-a...
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