外表长得一样,但里面不一样, u( y H8 _9 _4 B; s
. ^' |- @2 G$ c$ K z! Q- W
one stage T-STAT has "w" wire terminal$ C3 |0 w2 B" h2 O" N8 m8 K
two stage T-STAT has "w1" and "w2" wire terminal" a) |0 f( V# J6 `/ p
\" n! N! P: l- G* P$ O, Z* b' ~ ) Y- {, G4 x) y6 C- Imore question ,please call me 7809526512 huang