The paper determines the rational range of a new spiral rotary drum's rotation speed through theoretically analyzing the critical speed of the drum in a coal machine.

通过对采煤机新型变升角螺旋滚筒极限转速的理论分析，确定了该种新型螺旋滚筒转速的合理范围。

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The MSH range is designed for high pressure applications and the axial thrust is balanced by the combination of the drum and disc.

MSH系列产品作为针对高压应用的设计，轴向推力通过平衡室系统和圆盘一起进行平衡。

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The tire molding drum has the advantages of simple structure, low production cost and unrestricted application range.

这种轮胎成型鼓，结构简单、生产成本低、适用范围不受限制。

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After a couple of drinks head next door to The End nightclub, for an eclectic range of electronic music, including the funky drum n' bass of Swerve on Wednesday nights.

CNN: London: Where to be seen

Percussion instruments range from the balafon (marimba) to the calabash, but the celebrity drum is the djembe.

ECONOMIST: Percussion instruments