加劲板壳

  • 网络stiffened plates and shells

加劲板壳加劲板壳

加劲板壳

stiffened plates and shells

... luminaire for marine use 船灯 stiffened plates and shells 加劲板壳 A univalve mollusk or shell. 单壳软体动物或壳 ...

热词推荐