These imperfections, known as point defects, can weaken materials, which can be dangerous when the materials are components of machines like jet engines. (sciencedaily.com)
Set up and make ready for different sized jobs by making various adjustments on machine like to the stitching heads and blades. (jobhero.com)
Your grandmother (or maybe even your great grandmother) may not have had a top loading washing machine like you grew up with. (clothdiaperaddicts.com)