And three-dimensional sidewall compression inlet with 25 percent cowl position has high mass capture and total pressure recovery coefficient and isolator exit flow flied is homogeneous.
整流罩位置为25%的三维侧压进气道可以获得较高质量捕获和总压恢复系数，且隔离段出口流场比较均匀。
2
Quasi homogeneous charge compression ignition (QHCCI) combustion may be with low emissions, especially for soot and NO_X, according as the most fuel which is pre-mixed is lean burnt.
Ignited modes of reciprocating internal combustion engine addition to the spark-ignited and compression engine operation, a third option exists that is Homogeneous Charge compression Ignition (HCCI).