Whether external threads or internal threads, the section lines in the sectional views should be drawn intersecting with the thick solid lines.

Comparepitch to the number of threads per inch.

Arole-playsessionisparticularlyusefulinbringingtogetherdifferent______ofteaching. A: cords B: fibres C: threads D: strands

Whatis the tool used to form external threads? A: crest B: die C: chamfer D: tap

n. a delicate material made from threads of cotton, silk, etc.. that are twisted into a pattern of holes A: lace B: layer C: league D: label

Which of the following statements belong to Einstein's achievements in physics? A: It was proved that atoms and molecules existed. B: Light came in little bits (or photons) C: Space and time, like threads in a common fabric,could be bent, stretched and twisted. D: E=mc²

Which of the following characteristics does a thread have() A: Each process contains at least one thread. B: Only when all threads in the process have finished can the process finish. C: The new thread has a separate stack where global and static variables can be Shared. D: Multithreaded programs are more efficient than single-threaded programs.

Which one is TRUE in the following descriptions about the ignition system of CFM56-3 engine? ( ) A: There is no need to provide cooling air around the ignition leads to decrease temperature B: The Low-energy exciter output is 1 spark per second, 1 joules per spark. C: Only need one gasket controls the depth the igniter plugs go into the combustion chamber. D: Do not apply grease to the threads on the ignition lead end of the igniter plug.