This tutorial teaches you how to select the correct ladder style, size, and material by taking you through a specific project scenario. You will learn how to safely select, set up, and climb the ladder through a series of interactive choices with a character named John.
【基本信息】
作者:Oregon DCBS
更新时间:2014-08-29
版本:1.0.0
系统:Android 2.2.x以上
语言:其他
安全的梯子更新内容
提升了稳定性。
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