针对船舶耐撞特性研究问题的特点，提出进行结构碰撞相似律研究的必要性和重要性。
The necessity and significance of the analogue rule for ship structure collisions have been discussed based on the characteristic of this topic.
针对上述研究问题，本文的核心目的是构建并实证营销策略组合对消费者首次购买意愿的影响机理模型。
To this ends, this paper endeavors to build and testify the mechanism model of marketing mix's influence on consumers' first time purchase intention.
针对当前国内外关于歧义研究问题的不足之处，提出了改进之道。
It puts forward the way of improvement of research into ambiguity.
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