main jet meaning in Chinese

（化油器）主量孔
化油器主喷管
昼油嘴
主喷口
主喷油嘴
主喷嘴
主射流

Carburetor main jet
汽化器主射口
The elementary flow structure is a mixed structure of the main jet section and the swirl software . the boundary section is a strong turbulent cut section . the main jet mainly dissipates the energy in this section
主射流机诫能的传递、再分配和消散过程中，紊流脉动所提取的能量最多，其次h漩涡所吸收的能量。
These measures are as follows : shorten the primary wind intervals to improve thermal load of the burner ; reduce the size of hypothetical circle of contact to prevent the flame from splashing ; use nozzles with larger height / width ratio to increase the effusive rigidity , so as to increase the jet flow depth of secondary wind into the main jet flow ; use a higher primary wind velocity to increase its jet flow rigidity ; use a special flame holder structure of the primary nozzle , so as to improve
这些技术措施主要有:缩小一次风间距以提高燃烧器区域热负荷;缩小假想切圆防止火焰刷墙;采用高宽比较大的二次风喷口以增加射流刚性,提高二次风射流进入主射流的深度;采用较高的一次风速来提高一次风射流刚性;一次风喷口采用特殊稳燃结构;提高下二次风的托粉能力。