The cylinder head is heavily finned for strength.

头附有许多突片以增加强度。

I finned madly for the surface.

我拼命划动脚蹼想要浮出水面。

The design of turbulator air preheater with finned tube and that with optic tube as well as its application in petrochemical works were recommended.

介绍了扰流子翅片管空气预热器光管扰流子空气预热器的设计以在石化工厂中的应用情况。

This paper researches into enhanced heat transfer of condensation of splitting gas of waste plastics and R113 on the general smooth tubes,the screw tubes and the aculei finned tubes.

本文研究制冷剂R113和废塑料制程中产生的裂解气在水平光滑管、螺纹管与“犁刺”管上的冷凝强化传热。