词汇	Akiyama Hideo
释义	Akiyama Hideo 秋山英夫l921-
随便看	principal tensor principal term principal terminal principal test section principal tetrahedron principal theorem principal theorem ideal theorem Principal Theory of Social Development principal thing principal tide principal tone principal-to-principal principal to principal transaction principal-to-principal transaction principal to the contract principal trace principal tract principal trade principal trade partner principal trade partners principal trading principal traffic route principal training principal trajectory principal trangulation