All the way by Guan Ling Cun of block stone and gravel, gravel and wall transfer overgrown with moss, like a long green light time corridor, leading to unpredictable future.

官岭村所有的道路采用块石和卵石铺砌，卵石与墙基交接处长满了苔藓，悠悠的青光如同一条条时间长廊，通向不可预知的未来。

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Light aggregate concrete hollow block is an ideal material for exterior wall of building energy saving.

轻集料混凝土空心砌块是一种理想的建筑节能外墙砌体材料。

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The produced wall block has the characteristics of light weight, high strength and heat preservation.

所制成的墙体砌块具有质轻、高强、保温的特点。

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If you're caught you will get sent to D-Block solitary, a tiny cube where days are marked by a light shaft travelling across the wall - or you might be interrogated using techniques only alluded to in the otherwise thorough Alcatraz audio tour, with first-hand accounts by prison guards and prisoners of the Rock.

BBC: A tour of San Francisco��s Alcatraz