English-Spanish, Spanish-English Electrical and Computer Engineering Dictionary

If your looking for a book with just a simple translation this is it. For example, "boolean" is provided with a dozen different types (e.g. boolean algebra). "Boot" is given 2 possibilites "manguito aislador" and "cubierta aislante"; when to one or the other? and are these related to "boot your computer"?No definitions or pronounciations anywhere in this EE word translator; definitely not a dictionary (i.e. no definitions).It does have many 2 or more word translation; "tuned line" phrase provided: "linea sintonizada". Can't find that in any English to Spanish Dictionary but what does it mean and how to pronounce it is not provided.