例句與造句

1. According to our experimental investigations of varying load amplitude , it was found that the phenomena of fatigue crack growth retardation occurred for pmma material following a high overload cycle exerted among the regular constant amplitude load cycles , the ratio of peak value of overload to that of the regular cycles should be over at least 1 . 35 to make the retardation taking effect . the experiment scheme for measuring the shutting - off ratio of overload ( defined as the overload ratio when da / dn < 10 - 7 / cyc . )
   本文試驗(yàn)分析了變幅載荷對(duì)裂紋擴(kuò)展的影響，證實(shí)了有機(jī)玻璃也存在超載遲滯現(xiàn)象，通過金相觀察分析，提出超載遲滯的過程實(shí)際上是裂紋前緣萌生新的裂紋的過程的觀點(diǎn)，同時(shí)提出超載遲滯的合理的解析，并且給出超載遲滯比，為隨機(jī)載荷下疲勞擴(kuò)展模型的建立提供了一個(gè)重要的參數(shù)。
2. It's difficult to find overloading ratio in a sentence. 用overloading ratio造句挺難的