但是，较快的注射速度常常要与“排气不良”问题之间达成妥协，“排气不良”是指夹带空气的熔体前锋的烧焦现象。
However faster filling speeds are often compromised by problems such as' gassing '- the burning of the melt front due to entrapment of cavity air.
为了降低果汁在冷冻浓缩过程中由于冰晶夹带造成的的损失并提高浓缩速度，需要获得冷冻浓缩过程中冰晶的增长规律。
In order to decrease the juice loss during freeze concentration progress of ice crystals and improve the concentration speed, its essential to obtain the growth law of ice crystals.
气流入口速度的减小对颗粒被气流夹带出干燥器有显著的抑止作用。
When the gas inlet speed decreases, the out entrainment of particle from the drier is suppressed obviously.
大小和速度的液滴不断变化的期间，夹带和加速度在炎热的气体燃烧流。
The size and velocity of the droplets change continuously during their entrainment and acceleration in the hot gas combustion flow.
在相同供油量情况下，新供油方式形成环状流需要的入口气相速度低，且气速增大时一般不会形成夹带液滴，能够实现较好的环状流流型。
Results show that with the same oil amount, the new oil supply style needs a lower gas velocity in the inlet to shape the annular flow, and the oil drops will not appear in air flow.
在相同供油量情况下，新供油方式形成环状流需要的入口气相速度低，且气速增大时一般不会形成夹带液滴，能够实现较好的环状流流型。
Results show that with the same oil amount, the new oil supply style needs a lower gas velocity in the inlet to shape the annular flow, and the oil drops will not appear in air flow.
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