On smaller machines, adding disks and controllers may be a challenge and may also require the purchase of an expansion unit.

在较小的机器上，添加磁盘和控制器可能是一个难题，还可能需要购置一个扩展单元。

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If the expansion unit is connected at an Angle or not quite pushed in all the way, it may cause damage to the FD-MH Series.

如果在一个角度连接扩展单位或着不是一直推挤，它也许造成对FD - MH系列的损伤。

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The other "unique" feature of the Expansion Unit is that it also requires a separate rechargeable battery for its operation.

延伸基座另一奇特的设计，就是基座本身也同样需要一枚充电池才能运作。

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Changes include a new specialist IVF unit and expansion of the urology unit.

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In China, SSS grew 14%, while both the international unit and the U.S. unit saw a 5% expansion.

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The first is that Luton Airport was recently invited to Downing Street to brief the Prime Minister's policy unit on the issue of expansion.

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