DEVELOPMENT TENDENCY FOR THIN-WALLED STRUCTURES--INTRODUCTION TO THE FOURTH INTERNATIONAL CONFERENCE OF THIN-WALLED STRUCTURES是什么意思_DEVELOPMENT TENDENCY FOR THIN-WALLED STRUCTURES--INTRODUCTION TO THE FOURTH INTERNATIONAL CONFERENCE OF THIN-WALLED STRUCTURES在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句