缺乏调查研究：为了赶商业计划，许多业主不去核查和证实他们的主张。
Poor research: In an effort to get a business plan together hastily, many business owners do not double-check and substantiate their claims.
海岸带陆源氮磷污染输入是导致近海赤潮的主要原因，但目前尚缺乏系统的调查研究。
Although the terrestrial input of nitrogen and phosphorus arc main factors that cause the red tide in the near shore, little systematic research and investigation has been undertaken.
现有的研究多是对经验的逻辑思辨，缺乏大范围的实地调查研究。
Existing studies are mostly speculative logic of experience and lack large-scale field research.
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