About PING X
About Univ. Ottawa, Ont., CAN
About BEAUDOIN J J
About National Research Council Canada, Ont., CAN
About BROUSSEAU R
About National Research Council Canada, Ont., CAN
About Cement and Concrete Research
About limestone (ore)
About Mortar,concrete
About 骨材
About 界面
About 電気伝導
About モデル