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萬(wàn)里長(zhǎng)城是我國(guó)古代的一項(xiàng)極為重要的軍事工程,它東起河北的山海關(guān),橫跨山西、內(nèi)蒙、陜西、寧夏、西迄甘肅嘉峪關(guān),全長(zhǎng)一萬(wàn)二千多華里。遠(yuǎn)在戰(zhàn)國(guó)時(shí)代(公元前475—221年)萬(wàn)里長(zhǎng)城就開始修建。當(dāng)時(shí)主要是為了防御北方諸侯國(guó)和游牧民的滋擾而建的防衛(wèi)性城墻。秦(公元前221—207年)續(xù)建,形成了西起臨洮,東至遼東的萬(wàn)里長(zhǎng)城,現(xiàn)存長(zhǎng)城是秦漢之后,經(jīng)北魏、北圍、北齊的隋、宋、元各
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The history is the aged with best memory. The 50-year-long China Railway Shisiju Group Corporation No. 2 Company with glorious histories has built Beijing-Jiulong Railway, Qinghai-Tibet Railway, Beijing-Shanghai Expressway and other key projects in the vast land of China. The Company has obtained one and another award of national and provincial excellent projects, created one and another perfect records and staged one and another splendid stories. Si Ma Tai Tunnel, the “No. 1 Tunnel of the Great Wall”, witnesses the excellent performance of this “Railway Army” once again.
萬(wàn)里長(zhǎng)城浮雕圖知識(shí)來自于造價(jià)通云知平臺(tái)上百萬(wàn)用戶的經(jīng)驗(yàn)與心得交流。 注冊(cè)登錄 造價(jià)通即可以了解到相關(guān)萬(wàn)里長(zhǎng)城浮雕圖最新的精華知識(shí)、熱門知識(shí)、相關(guān)問答、行業(yè)資訊及精品資料下載。同時(shí),造價(jià)通還為您提供材價(jià)查詢、測(cè)算、詢價(jià)、云造價(jià)等建設(shè)行業(yè)領(lǐng)域優(yōu)質(zhì)服務(wù)。手機(jī)版訪問:萬(wàn)里長(zhǎng)城浮雕圖