| 分类号 |
F01B7/12;F01L1/053;F01L1/14;F01L1/18;F01L1/26;F01L1/44;F01L3/08;F01L3/20;F02B1/12;F02B19/12;F02B29/04;F02B33/06;F02B33/26;F02B33/36;F02B33/38;F02B33/44;F02B37/00;F02B37/04;F02B37/16;F02B39/10;F02B41/04;F02B75/02;F02B75/22;F02B75/32;F02D13/02;F02D23/00;F02D41/40;F02F1/24;F02M25/07 |
主分类号 |
F01B7/12 |
