At present, the existing large-sized emergency equipment and respiration first aid appliance do not have the functions of portability and monitoring first aid at the same time.
目前，大型急救装置和呼吸急救器都不能同时具备既便于携带又有监测急救的功能。
A removable dental appliance fabricated of wire and plastic that is worn in the palate and used as a diagnostic or therapeutic aid in orthodontics or prosthodontics.
咬合托一种可移动牙科器具，由金属丝和塑料制成，戴于腭上，作为牙齿矫正或修复的诊断或治疗辅助器。
A removable dental appliance, fabricated of wire and plastic, that is worn in the palate and used as a diagnostic or therapeutic aid in orthodontics or prosthodontics.
咬合托一种可移动牙科器具，由金属丝和塑料制成，戴于腭上，作为牙齿矫正或修复的诊断或治疗辅助。
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