inverting
 換向


 inverting
 反向


 In·vert v. t. [imp. & p. p. Inverted; p. pr. & vb. n. Inverting.]
 1. To turn over; to put upside down; to upset; to place in a contrary order or direction; to reverse; as, to invert a cup, the order of words, rules of justice, etc.
 That doth invert the attest of eyes and ears,
 As if these organs had deceptious functions.   --Shak.
 Such reasoning falls like an inverted cone,
 Wanting its proper base to stand upon.   --Cowper.
 2. Mus. To change the position of; -- said of tones which form a chord, or parts which compose harmony.
 3. To divert; to convert to a wrong use. [Obs.]
 4. Chem. To convert; to reverse; to decompose by, or subject to, inversion. See Inversion, n., 10.