In Type 3 situations, there are few alternatives, but the ability to switch without difficulty creates a threat that companies can use to negotiate concessions from existing suppliers.

在第三种情况下，几乎没有其他选择，但毫无困难地转换的能力造成了一种威胁，企业可以利用这种威胁与现有供应商谈判让步。

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Listing 2 shows how to switch the type of access when the project is already open.

列表2显示了当这个项目已经被打开时如何转换它的存取类型。

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The pumping source is a switch type and inverse excitation model in small size but it has high efficiency.

泵浦系统是小型高效率开关型反激式脉冲泵浦源。

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Matias says it spent more than two years working on a new type of key switch -- a modified ALPS switch it's dubbed Quiet Click -- and it has indeed come up with something unique.

ENGADGET: Matias Quiet Pro review: a mechanical keyboard with less clickety-clack

Today there are at least 40 governments with flat tax-type systems, most of which made the switch in just the last decade.

FORBES: Flat Tax Is Fantasy In U.S. But Works Fine Behind Old Iron Curtain

The Localism Act will require the 12 biggest cities in England to hold referenda to consider a switch to elected executive Mayors - the result could be a Boris-type figure in Birmingham, Bradford, Bristol, Coventry, Leeds, Liverpool, Manchester, Newcastle upon Tyne, Nottingham, Sheffield and Wakefield .

BBC: The mayoral future for England's great cities