常見例句雙語例句Two kinds of welded joint have good crack resistance, impact toughness, stretching and bending performance.兩種焊接接頭都具有良好的抗裂性能、沖擊性能、拉伸和彎曲性能。The crack growth process is a continuous process of alternating crack-tip stretching and ductile crack cracking.裂紋的增長過程是一個裂紋尖端延伸與延性裂紋啟裂持續(xù)地交替出現的過程。The main causes of bottom flat crack are analyzed, mainly including radial force generated by closure strands stretching in middle span , non-structural elements and construction effects , etc.分析了導致底板崩裂的主要原因，主要包括跨中合龍束張拉時產生的徑向力作用、非預應力鋼筋構造因素及施工影響等； 返回 stretching crack