喷嘴自由射流的流态分为收缩段、密实段、掺混段和分散段四部分。
The free spray stream state of the efflux nozzle is divided into four sections -contract, dense, mixing and dispersion section.
射流的偏转角主要受阀口角度的影响，几乎与阀口尺寸无关；但射流的收缩系数则与两者都有关系。
The deflection angle of injection mainly depends on the valve port angle and almost has no relation to the valve size, but the reduction coefficient vavies with both of them.
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