Here are entered general works on the application of engineering to ships and their machinery. Works on the engineering aspects of equipment and techniques facilitating operations beneath the surface of the ocean in order to exploit its resources are entered under Ocean engineering.
Here are entered comprehensive works on the basic engineering and industrial materials used in the construction of devices, apparatus, structures, equipment, etc. --subdivision Materials under scientific and technical disciplines and under types of equipment and construction, e.g. Electronics--Materials; and phrase headings for special types of materials, e.g. Building materials; Raw materials
Here are entered works on biochemical and genetic engineering processes involved in the synthesis, modification, and production of protein products for various applications.
Here are entered general works on railroad engineering, including surveying, construction, maintenance and repair, operation, etc. treated collectively.
Here are entered works on the planning, design, construction, and operation of works of various kinds for the purpose of modifying natural river conditions to better serve human needs.