考试(生物学)
衬垫
真空吸尘器
工程类
计算机科学
工程制图
机械工程
地质学
计算机安全
古生物学
抽吸
摘要
This specification provides the construction details, replacement procedures, and selection criteria for the standard test carpets and pads used when testing vacuum cleaners. The carpet types, which shall be constructed in accordance with the physical requirements provided herein, are classified as follows: shag custom tufted test carpet; plush custom tufted test carpet; multilevel custom tufted test carpet; and level loop test carpet. Padding, on the other hand, shall be of the sponge rubber type of waffle construction with a reinforcing skrim.
科研通智能强力驱动
Strongly Powered by AbleSci AI