The results of tomography demonstrate that 1. there is significant lateral inhomogeneity in wave velocity in the North China region;

层面成象的结果表明：1。华北地区的地震波速度存在明显的横向不均匀性。

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This Border Region covers an area of two million square kilometers in the heart of North China.

我们边区位于华北的中心，面积二十多万平方公里。

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The whole system is improved based on the actual request of the protection & control equipment in North China region.

整个控制及保护系统均结合华北地区对控制保护设备的实际要求作了相应的改进。

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The company has operations in the Middle East, Central Asia, the Asian-Pacific region and North America, but China projects account for 83% of revenue.

WSJ: Sinopec Engineering's IPO Has Skeptics

The consensus is that China shares common interests with the U.S. and nations in the region in denuclearizing North Korea.

CENTERFORSECURITYPOLICY: Why China isn't helping disarm North Korea