The proportion of representation of the various parties is determined by established convention, negotiated between the parties.

代表比例由惯例或各党间协商决定。

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For the purposes of social life, in addition to the convention about harvest-time, a most elaborate code of honour has been established and is on the whole faithfully observed.

为了社会生活目的，除了关于收获季节的惯例外，还制定了一套最详尽的荣誉准则，而且总体上是需要严格遵守的。

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The Conference of the Parties also decided that a permanent secretariat, the Convention secretariat, shall be established within WHO and located in Geneva.

缔约方会议还决定，应在世卫组织内建立一个常设秘书处——公约秘书处，地点设在日内瓦。

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It's simply a convention established after the fact that allows us to organize material in ways that we can grapple with it ways that we can understand it.

这仅仅是在事后建立的一种惯例,好让我们组织材料,用容易整理的方式,用容易理解的方式

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Big news deserves big, bold, immediate moves that break the rules of established convention instead of emulating them, however expertly.

FORBES: Microsoft's Marketing Malfeasance

By long-established convention, they have autonomy in domestic policy, including fiscal policy.

ECONOMIST: Offshore financial centres

It was a well established social convention for women of more humble origins to move through service to older men with power as Jane does, she just does it more on her own terms than most.

FORBES: Jane Eyre: Lustful Feminist