Foundation item:The Central Level, Scientific Research Institutes for Basic R & D Special Fund Business ( No. 2060302 ) , National Natural Science Foundation of China (No. 40841016, No. 40372131 and N
<正>Front bumper,crash box and side rail are key body structural parts in front crash.Deformation space is affected by compartment packaging.The improvement sug
Flexible flowlines and risers have been increasingly used for deepwater and ultra-deepwater field applications,partially because of its low submerged weight and