Appearance is used as the main condition for identity, although appearances can be quite deceiving.

人的相貌是身份的主要方面，虽说相貌有时是很具有欺骗性的。

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The quality of molten iron is a main condition influencing the quality of castings The pureness of molten iron is a weakest link to the quality of molten iron.

铁水的质量是影响铸件产品质量的主要因素，其中铁水纯净度是影响铁水质量的薄弱环节。

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Finance evaluation for project is an important content that you should think when you invest, and is a main condition whether bank and other financial sector provide loan.

项目财务评估是对项目进行投资决策时必须考虑的一项重要内容，也是银行等金融部门考虑是否提供贷款的一个主要条件。

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"The main condition is that there first has to be a settlement and it has to be ratified then the land will be handed over."

VOA: standard.2009.11.11

IMF, which has previously made the reform package a main condition for disbursing aid to Thailand.

ECONOMIST: Thailand

Before the meeting, Larijani repeated Tehran's rejection of Russia's main condition, a moratorium on Iran's own nuclear fuel production.

NPR: Iran Refuses Key Condition in Russia Nuclear Talks

The main sign of the condition is the big toe pointing towards the other toes, which forces out the bone attached to it - the first metatarsal.

BBC: Bunions - family not footwear to blame