低翅片管 meaning in Chinese

low finned tube

The finite element solutions of natural frequencies of low - finned tube were obtained in four - constraint mode by simulating work condition of tube in heat exchanger
采用共振法对低翅片管在上述四种约束模态下的固有频率进行实验测试。
The finite element model was made by considering the influence of fins geometry , radius at the bottom of the fins , and the rate of length to outer diameter of tube
模拟低翅片管在换热器中的工作状态，得到低翅片管在四种约束模态下固有频率的有限元计算值。