In plasma physics experiments of HL-1M tokamak, three refuelling methods (gas puffing, pellet and supersonic molecular beam (SMB) injection) were used. The penetration characteristics and the average speed of the pellet and molecular beam were analysed and estimated by means of contour plots of H-alpha emissivity distribution. On HL-1M tokamak, the penetration depth of the pellet was up to 0.25 m, and the average speed of the pellet inside the plasma was less than that outside the plasma. The SMB was injected into the plasma from the low-field side and its average speed was more than 1 km s(-1). [References: 12]
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机译：在HL-1M托卡马克的等离子体物理实验中，使用了三种加油方法（吹气，团粒和超音速分子束（SMB）注入）。通过H-α发射率分布的等高线图分析和估计了颗粒和分子束的穿透特性以及平均速度。在HL-1M托卡马克上，沉淀物的渗透深度高达0.25 m，且等离子内部的平均速度小于等离子外部的平均速度。 SMB从低场侧注入等离子体，其平均速度超过1 km s（-1）。 [参考：12]
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