Through a detailed engineering design , introduced some methods of repairing and reconstruction firs_class conservational building .

通过具体的工程实例，较详细地阐述了一类保护建筑维修加固改造时的一些方法。

Section 1133 makes the agency administering any wilderness area " responsible for preserving the wilderness character of the area " and for insuring that these areas are devoted to " the public purposes of recreational , scenic , scientific , educational , conservational , and historical use " .

第1133条规定管理荒野上地的机构“有责任保护该土地的荒野特征”，并确保这些土地是用于“公共的休闲娱乐、参观揽胜、科学研究、教育、自然和历史保护等目的”。