The liquid cryogen contacts the metal surface, generating a volume of expanding gas over the metal surface.
液体制冷剂接触金属表面，从而在金属表面上产生一定体积的膨胀气体。
The lance has a hood that directs both a flow of liquid cryogen and a flow of vaporous gas toward the metal surface.
所述喷管具有朝金属表面引导液体制冷剂流和蒸气流的罩盖。
The coil is surrounded by a cryogen chamber (17) which is located radially outwardly from the coil (3) on the other side of the support (12).
线圈被制冷剂室(17)环绕，该制冷剂室在支撑体(12)的另一侧上位于线圈(3)的径向外侧。
The coil is surrounded by a cryogen chamber (17) which is located radially outwardly from the coil (3) on the other side of the support (12).
线圈被制冷剂室(17)环绕，该制冷剂室在支撑体(12)的另一侧上位于线圈(3)的径向外侧。
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