The main shaft of grinding wheel adopts dynamic-static pressure bearing; the main shaft case and guide rail are separable so that they are convenient to service and replace.

砂轮主轴采用静动压轴承，主轴箱和导轨部分可分离，便于维修和更换。

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He also wants to abolish the Internal Revenue Service and replace the federal income tax with a 23% national sales tax.

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Wadongo said that when the time and need arises, he intends to service, replace and recycle his lanterns.

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She will be responsible for all Sky's "content" except sport, including a number of planned new channels: a second general entertainment channel to sit alongside Sky One, a version of the same channel to go on the new BBC-backed Freeview service which is to replace ITV Digital, and three new MTV-style music channels.

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