探访长城重修:城砖靠骡队驮上山 不用水泥用白灰[图
http://bigtu.eastday.com/img/201409/14/0/420793747922109584.jpg让骡子干活容易，让它们听话难http://bigtu.eastday.com/img/201409/14/94/13019098181663032558.jpg 虽用古法修复，但现场还是准备了大型机械http://bigtu.eastday.com/img/201409/14/58/6968196894660351886.jpg
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