标题（Title） 一般不超过80个字符
China 3W Aviation Technology Co., Ltd.
（38 个字符）
关键词（KeyWords）一般不超过100个字符
UAV engines,UAS,Drones,unmanned,Vehicles,Heavy Fuel,Engines,Gas Engines,2-stroke engines,Unmanned Aerial Vehicle,gasoline engines,heavy fuel system,pre-heated crankcase, cartridge heaters,one-cylinder,two-cylinder,four-cylinder,twin spark cylinders,break-in procedure,automatic compression release valves,3W-mufflers,fuel consumption
（340 个字符）
描述（Description）一般不超过200个字符
chinawaviationtechnologyco.,ltd.wasestablishedinandhaslongbeenfocusingonmachineryandindustrialequipment.diouadvocatestheenterprisespiritof“professional,pragmatic,efficientandinnovative”andhasagoodinternalmechanism.andhasasoundtechnicalresearchanddevelopmentstrengthandamatureafter-salesserviceteam.ouraimis:&#;inexchangeforserviceandsincerityinexchangeforyourtrustandsupport.&#;
（378 个字符）
