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- 非调质D级抽油杆用钢as-rolled and tempered steel for D-level sucker rod
- 超高强度抽油杆用非调质贝氏体钢摩擦焊接头的力学性能Mechanical properties of friction welding joint of non-quenching and tempering bainitic steel for super-strength sucker rods
- D级抽油杆用钢断裂韧性的评定Evaluation of fracture toughness of API Class D sucker rods
- D级抽油杆用20CrMo钢疲劳试验Fatigue bet of 20CrMo steel for Grade D sucker rod.
- 有调中转车停留时间Detention time of car in transit with resorting
- 无调中转车停留时间Detention time of car in transit without resorting
- 25%戊唑醇乳油防治香蕉叶斑病药效试验Ettect of 25%25 Tebuconazole EC on controlling banana leaf spot diseases
