secondary surface layer的用法和樣例：
例句
- The damage of sub-surface was very similar to the damage of the surface, mainly with a few oxidation eroding pits.
次表層上主要分布著(zhù)少量細小的氧化腐蝕坑，次表層和表層的失效非常吻合。 - The abundance mixing those occurs in the estuary, the outstandinger is the earthward flow in the subsurexpression layer.
在河口灣呈現的混合越強烈，次表層向陸地方向的流量就越大。
