The investigations show that the secondary maintenance for steel pipe piles by the methods of underwater coating and drainage covering ia an effective measures.
研究表明，采用水下涂料和排水护套法对钢管桩进行二次维护是行之可效的。
Paths and secondary roads were improved only at the request of communities who were willing to participate in construction and maintenance.
只有在那些愿意参与建设和保养公路的社区提出要求后，乡间小路和二级公路才有所改善。
Such artifacts are viewed as secondary, and therefore as a future maintenance burden.
这样的工件被视为次要的，因此成为未来维护的负担。
Historically, models have been used as secondary artifacts, creating a maintenance burden.
从历史上，模型用于次要的工件，生成了维护负担。
Requirements: technical secondary school or above, skilled driving, skilled maintenance skills, good communication skills and coordination ability; 2000-5000 yuan.
要求：中专以上学历，熟练驾驶，熟练维修技能，良好的沟通能力与协调能力；2000- 5000元。
Through the secondary development, the updating and maintenance of topographic maps have been realized. It is favourable for quality controlling and meet the demand of storage of topographic maps.
通过二次开发，快速实现了地形图的更新与维护，并有利于质量的控制，符合入库要求。
In doing so, each of the other crew members can understand the code, so that the source code of the secondary development of the memory system maintenance.
这样做可以使每一个组员都可以理解其它组员的代码，以便于源代码的二次开发记忆系统的维护。
Framework for easy extensions, code maintenance, excellent secondary development capabilities to meet application requirements for all sites.
框架易于功能扩展，代码维护，优秀的二次开发能力，可满足所有网站的应用需求。
The procedures of secondary development are demand analysis, coding, test and maintenance.
二次开发的步骤是需求分析、现有 HIS分析、代码编写、测试和维护。
Under the similar site condition, the secondary forest and the mixed plantations had greater water conservation function and better maintenance of soil fertility than the pure stands did.
在相同的立地条件下，天然次生林和混交林具有更好的维持地力作用和更高的水源涵养功能。
Under the similar site condition, the secondary forest and the mixed plantations had greater water conservation function and better maintenance of soil fertility than the pure stands did.
在相同的立地条件下，天然次生林和混交林具有更好的维持地力作用和更高的水源涵养功能。
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