“变细”的英语？

变厚的动脉壁使流通血液的管腔变细.The thickened artery wall narrows the channel through which the blood flows.那支旗竿逐渐变细成尖头.The flagpole tapered off to a point.向上变细的水道可以出现在好多种环境中, 从海底峡谷到冲积扇.Upward - fining channels may occur in a wide rang...

“变细”的拼音为：biàn xì...