By using manual methods, hyper-spreading spots can be produced while the surface temperature is higher than T1, this is termed induction of a hyper-spreading spot.
用人为的方法，在表面温度高于T1时产生超前扩展点的做法叫做超前扩展点的诱导。
By using manual methods, hyper-spreading spots can be produced while the surface temperature is higher than T1, this is termed induction of a hyper-spreading spot.
用人为的方法，在表面温度高于T1时产生超前扩展点的做法叫做超前扩展点的诱导。
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