救生 ( 助 ) 艇吊架结构和压重试验.Inspection the structure and loading test of the lifeboat ( Rescue boat ) davit.对刚性支承,上述计算出的荷载应乘1.4,作为选择或设计支吊架零部件的结构荷载.The obtained load multiplied by 1.4 is the structure load for design.发动机吊架和整流罩无液压...
这种鱼为长圆形, 侧扁, 头大.The fish is long, round, flat, and has a large head.扁头发炎怎么办?How does flat head agnail do?认为扭振 、 疲劳裂纹及材质是导致万向接轴扁头断裂的主要原因.The result shows that torque, fatigue crack and material are the main reasons for th...