Duct branch is rich in natural form of uniform distribution, wall smooth, branch pipe and tube diameter on the transition to a flat.

导管分支丰富，形态自然，分布均匀，管壁光滑，分支导管与上一级导管管径过渡平缓。

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Pipe wall smooth formation, no bubbles, nicks and obvious scar patterns Depression, color and uneven discoloration decomposition line.

管材外壁光滑、平整、无气泡、裂口和明显痕纹凹陷、色泽不均及分解变色线。

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Tracks crisscrossed it; smooth areas of slope indicated regular use by skateboards and Wall of Death, or at least Wall of Seriously Grazed Knee, cyclists.

自行车车辙纵横交错；光滑的斜坡显然被用来玩滑板或者“死亡之幕”的游戏，而且至少造成了几起“膝盖骨摔伤”和单车特技事故。

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This early wall has a smooth and solid look.

VOA: special.2009.06.01

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