In order to reduce the number of the cutting tools and measuring tools which are used to manufacture and measure machine parts, two fit systems are applied, hole-basis system and shaft-basis system, in which the shaft-basis system is the most commonly used one.
举一反三
- Two systems of weights and measures used in the U.S. are ______. A: the U. S. Customary System and the metric system B: the International System and the metric system C: the Imperial System and the metric system D: the Customary System and the Imperial system
- Which of the following is not a commonly used research method for uncertain systems? A: A. Probability statistics B: B. Fuzzy mathematics C: C. Grey system D: D. Operations Research
- Which of the following are the basic tools used for paper cutting? ( ) A: cutting boards B: Knives C: glue D: Scissors
- Most large power systems install equipment to allow operations personnel to ( ) and operate the system in a reliable manner. We will lump these under the commonly used title system security. A: monitor B: repair C: establish D: study
- One of the most commonly used tools for generating ideas is: A: Brainstorming B: Meeting C: Discussion D: Quarrel