Investigation, analysis, design, implementation, and maintenance.
调查，分析，设计，实施和维护。
Investigation, analysis, implementation, and maintenance.
调查，分析，实施和维护。
The investigation carried out before the implementation of the plan must be done seriously.
在正式实施计划前必须做好预行调查工作。
Part II: survey programme design and implementation of the process of investigation.
第二部分：调查方案的设计及调查过程的实施。
Part II: survey programme design and implementation of the process of investigation.
第二部分：调查方案的设计及调查过程的实施。
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