undersurface造句

1、western United States bird with red undersurface to wings and tail.
美国西部鸟，腹部、翅膀和尾巴为红色。

2、It provides precise dimensional tolerances, enhanced surface finishes and no undersurface cavities.
该技术可以实现精确的尺寸公差，提高表面抛光度，避免表面下空洞。

3、Large flicker of eastern North America with a red neck and yellow undersurface to wings and tail.
北美洲东部大型金翼啄木鸟，颈红色，腹部、翅膀和尾巴为黄色。

4、It is worth popularizing as a new type undersurface layer gradation of asphalt pavement.
是一种值得推广的新型沥青路面下面层级配。