变细 meaning in Chinese

diminution; attenuation

Pulmonary arteries taper towards periphery .
肺动脉向周围逐渐变细。
The thickened artery wall narrows the channel through which the blood flows .
变厚的动脉壁使流通血液的管腔变细。
Upward-fining channels may occur in a wide range of environments, from submarine canyon to alluvial fan .
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。
Grain gradation, from coarser below to finer above in repeated, truncated sequences within the ellerslie sandstone is also evident .
在埃勒斯莱砂岩层段内，重复出现的截顶层序中，自下而上，由粗变细的粒级递变也是明显的。
By tapering these towers to the top , different floorsizes can be made
这些顶部逐渐变细的塔楼,设计了不同的楼层

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