n.波动；弯曲；起伏
As an assistant one to the shipping industry,which is fluctuated with the undulation of the shipping. 船供行业作为航运业的一个辅助行业也会随之波动而受到影响。
Factor effecting injection quantity uniformity were briefly analyzed, and the undulation quantity and injecting pulse revising was put forth to meet the respective demand. 简要分析电控喷油器的均匀性影响因素，提出了压力波动量控制的办法和喷油脉宽修正的办法满足小喷油量均匀性要求。
But some unexpected enthusiasm and undulation are needed under the rational business imprints. 但是理智的商业印记下，也需要一些出乎预料的激情和起伏。
