noseclip

常见例句

• Using both hands, mould noseclip to the shape of the lower part of the nose, do not pinch the nosepiece using only one hand as this may result in less effective respirator performance.
  用兩衹手，調整鼻梁夾的形狀。不要衹用一衹手去捏鼻梁夾，這樣可能會導致呼吸器傚力減輕。
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