Answer:

A utensil that has a handle and a blade that may or may not be sharp-edged. Available in a wide variety of different types and sizes, a knife is used for cutting, chopping, dicing, slicing, mincing, peeling, separating, and other kitchen tasks where the thin metal shaft of a blade is of value for food preparation-------Electric knife

Microwaves are widely used in modern technology, for example in point-to-point communication links, wireless networks, microwave radio relay networks, radar, satellite and spacecraft communication, medical diathermy and cancer treatment, remote sensing, radio astronomy, particle accelerators, spectroscopy, industrial ----Microwave

An ironing board is generally a large, flat piece of board or metal that is covered with a heat-safe padding on which clothing or linens may be ironed safely------ironing board

Wash the bottles and accessories with hot, soapy water before sterilization to remove the milk residue. Bottle sterilizers can be used with both glass and BPA-free plastic bottles. Sterilize new bottles before their first use. There's no need to sterilize your bottles after every use unless your baby is sick-----bottle sterilizer