double-threaded

形容词 adj.
中文释义

英文释义

形容词 adj.
  1. Consisting of two threads twisted together; using two threads. not-comparable
    — double-threaded worm
  2. Having two screw threads instead of one; said of a screw in which the pitch is equal to twice the distance between the centers of adjacent threads. not-comparable
    — A multiple-threaded product is one having two or more threads cut beside each other (imagine two or more strings wound side by side around a pencil). Standardized products such as screws, bolts, and nuts all have single threads; a double-threaded screw has a lead equal to twice the pitch, a triple-threaded screw has a lead equal to 3 times the pitch, and so on.
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