rubber sealing washer — резиновая уплотняющая прокладка
friction washer — кольцевая фрикционная прокладка
cylinder-head washer — прокладка головки цилиндра
backing washer — усиливающая кольцевая прокладка
packing washer — уплотнительная прокладка
English-Russian big polytechnic dictionary. 2014.
Sodium hydroxide — Sodium hydroxide … Wikipedia
Laboratory glassware — Three beakers, a conical flask, a graduated cylinder and a volumetric flask … Wikipedia
Swivel — A swivel is a connection that allows the connected object, such as a gun or chair to rotate horizontally and/or vertically. A common design for a swivel is a cylindrical rod that can turn freely within a support structure. The rod is usually… … Wikipedia
