不同形状的

You can differentiate between the houses by the shape of their chimneys.

你可以凭借烟囱形状的区这两幢房子。

With certain shapes of or canula, elongated caps are made to cover both canula and threaded portion, and seal the canula at its top.

根据口和导的形状，可以制造细长的盖以覆盖导和螺纹部，并在顶部封住导。