The R.C. silo that has been constructed is analysed and summarized in the paper, and unbonded prestress concrete silo is put forward.是什么意思_The R.C. silo that has been constructed is analysed and summarized in the paper, and unbonded prestress concrete silo is put forward.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句