CHAPTER III.
INSULATIONS AND CEMENTS.
Selection of Insulating Materials. Mineral
Oil. Paraffin Wax. Resin Oils. Beeswax.
Shellac Varnishes. Silk. Insulating
Compounds 92-98
Induction Coils, How to Make, Use, and Repair Them. Including Ruhmkorff, Tesla, and Medical Coils, Roentgen Radiography, Etc. Etc. · 第 3 / 16 章