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。
The invented heat exchanger including multiple cascaded recuperators forms heat exchange mode of stepped countercurrent liquid bath.
本发明涉及一种多级液浴式换热器，它由多个换热室串联组成，形成梯级逆流液浴换热方式。
The invented heat exchanger including multiple cascaded recuperators forms heat exchange mode of stepped countercurrent liquid bath.
本发明涉及一种多级液浴式换热器，它由多个换热室串联组成，形成梯级逆流液浴换热方式。
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