in echelon meaning in English

成梯形

Calves swimming in echelon showed a 28 % increase in average swim speed and a 19 % increase in distance per stroke
排成梯队的游动幼海豚的速度比它们的平均速度快了28 % ，同时每次尾部击打的间隔距离也上升了19 % 。
In addition , calves in echelon spent over a third of their time gliding while no gliding was observed in calves swimming on their own
另外，这些排成梯队的幼海豚三分之一的时间都在滑动，但是这些滑动都不是靠它们自己产生的。
In the process of medical evacuation , the medical treatment trends to become “ the definitive treatment ” , for the progress of technique and the improvement of organization in medical treatment in echelons . the diagnosis of war wounds renews continuously , meanwhile the elements of the diagnosis become more and more detailed . so , it not only fulfills the demands of treatment under the condition of battle , but also does it reach the demands of treatment in definitive organization
在伤员医疗后送过程中,随着救治阶梯在技术上由低级到高级和逐步完善的组织形式,伤员越来越趋向于“确定性治疗” ,战伤诊断一方面将不断更新,另一方面战伤诊断的要素将越来越详细。因此,战伤诊断既要适应野战条件下伤员救治需要,又要适应确定性机构治疗需要。