常見例句雙語例句The fatigue life of the creeper tread is lacking in the maintenance support system of the self-propelled gun.履帶板的疲勞壽命是自行火炮維修保障體系中急缺的指標。It is very difficult to predict the fatigue life of the creeper tread because both testing load history and fixing on load locations are not easy to realize.由于履帶板的載荷歷程難以測試和載荷作用部位難以確定，疲勞壽命預測很難進行。 返回 creeper tread