英语语法分析

Hatchlings are simply too small to conserve body heat, even with insulation and countercurrent exchange systems.

刚孵出的小海龟太小了，即使有保温和逆流交换系统，也无法保持体温。

The leatherback is certainly not the only animal with such an arrangement; gulls have a countercurrent exchange in their legs.

当然并不只是棱皮龟有这种结构，海鸥的腿部也有一个逆流交换系统。

The leatherback accomplishes this by arranging the blood vessels in the base of its flipper into a countercurrent exchange system.

棱皮龟通过将鳍状肢底部的血管排列成逆流交换系统来完成这一过程。