The key point of QC in vibroseis operation is source state.

可控震源施工中质量控制的重点是震源状况。

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The destination state of a transition can be the same as its source state.

一个转换的目标状态可以与其源状态相同。

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A transition is a relationship between a source state vertex and a target state vertex.

转换是源状态顶点和目标状态顶点之间的关系。

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Cigarette taxes are a vital revenue source for New York State, which has the highest-priced cigarettes in the nation - almost $15 a pack.

VOA: standard.2010.08.11

Growth in sales-tax revenue, a critical source of state income, has tumbled and will struggle as long as consumer spending does.

ECONOMIST: State fiscal crises may deepen America's downturn

In the past three months Iraq has signed ten deals with large international companies: these may eventually double or triple Iraq's oil revenues, the main source of state funding.

ECONOMIST: Iraq's election

From the same source as the state run schools, the local municipality.

FORBES: Egalia: Gender Neutral Schooling and School Voucher Programs