与"Ball valve obstruction"相近的词条

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• ball-valve action
• Ball valve block
• ball valve effect
• Ball-valve gallstone syndrome
• ball valve holder
• Ball valve obstruction
• ball valve syndrome
• ball-valve thrombus
• ball valve type penetrating chest wound
• ballabactivirus
• ballad
• ballade
• balladry
• Ballance sign
• Ballance's retractor
• Ballance's sign、ballances sign

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