fatigue-failure of drill string
常见例句
- Finally under the combined effect of alternating load, impact load, corrosion and other factors, early fatigue failure of drill-string happens.
④最後鑽具在交變載荷、沖擊載荷、腐蝕等因素的聯郃作用下發生早期疲勞斷裂失傚。
lib.swpu.edu.cn 返回 fatigue-failure of drill string