But before, the change residence scope limited to the cheekbone thickness, is limited, only may apply after the mild root of the tongue gas channel narrow patient.
但前徙幅度限于颊骨厚度，非常有限，仅可应用于轻度舌根后气道狭窄的患者。
The methods of reducing centrifugal fan fixed in oil gas machine are studied by altering the gap between cases and tip of rotor, radius of tongue of case and inclining the tongue of case.
采用改变蜗舌间隙、蜗舌半径及倾斜蜗舌等方法对家用油烟机主要噪声源的离心风机进行降噪研究。
The gas inside the rubber ball is extruded out via the opening and a round recess is arranged at the periphery of the tongue surface opening.
橡胶皮球内的气体可通过该开口挤压而出，在舌面开口的周围有一圆形凹陷。
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