一般来说，冒号前面一部分是研究的对象、内容或课题，比较笼统，冒号后面具体说明研究重点或研究方法 。这种结构可再分为三种模式 。
模式1 研究课题：具体内容，例a. Microelectronic Assembly and Packaging Technology:Barriers and Needs 例b. Fire Resistant Steels for Construction:Design,Properties and Microchemistry 例c.Acoustics of Long Spaces Theory and Application 例d.Impact of Cancer:Coping Process and Quality of Life 模式2 研究课题：方法/性质，例a. Solid Oxide Fuel Cell:A Survey 例b. Absorbable Implants in Finger Fractures. A Biomechanical and Comparative Study 例c. The Use of Technology in Higher Education Programs: a National Survey 例d. Development of New Public Water Supply Well-fields Using Electromagnetic Conductance: Two Case Studies 模式 3 研究课题：问题焦点 例a. Aluminum: Is It Hazardous to Your Health？ 例b. Noise: Good? Bad? Maybe Both？ 例c. Manure: Friend or Foe? 。
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