微辉长岩相与标准的布拉瓦约粒玄岩床相同。
The micro-gabbro phase is identical with the typical bulawayan dolerite sills.
沿布拉瓦约断层带，强烈剪切和交代的砂质岩也常渐变为这类岩石。
Along the faulted Bulawayan contact, highly sheared and metasomatized arenites also grade imperceptibly into this rock type.
电价从去年夏季每兆瓦约60美元下跌至今夏的20—30美元，紧随天然气和煤的跌价而下跌。
Prices have fallen from around $60 per megawatt-hour last summer to $20-30 this summer. They are strongly tied to the prices of natural gas and coal, which have both fallen too.
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