自从1876年德国人奥托发明并制成第一台实用的内燃机(煤气机)以来,内燃机存在发展的历史已有一百一十年了。一百多年来,已相继发明了各种类型的内燃机。如迴转式三角活塞发动机,燃气轮式发动机,脉冲式喷气发动机,和各类往复活塞式发动机等等。就目前来看用得最多、最广泛、最有实用价值的仍然是往复活塞式发动机。你知道标志它的基本特性的几个参数的最 It has been one hundred and ten years since the German Otto invented and made the first practical internal combustion engine (gas engine) in 1876. For over 100 years, various types of internal combustion engines have been invented one after another. Such as rotary-type triangular piston engine, gas-wheeled engines, pulse jet engines, and various types of reciprocating piston engines and so on. For now the most widely used, most extensive, most practical value is still reciprocating piston engine. You know the most of several parameters that mark its basic characteristics