Starting in 1829 he began collaborating on improved photographic processes with Louis Daguerre, and together they developed the physautotype, a process that used lavender oil.

在1829年，他就开始和路易·达盖尔合作改善照相术，他们一起开发出“物理碳印法”，这一过程要使用薰衣草油。

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The bigger point is that Mr Putin's rule has coincided with a spectacular rise in oil prices, leading to improved living standards for millions of Russians.

最主要的是普京的统治期间正好是石油价格上涨的时期，这使得数百万的俄罗斯人的生活水平得以提高。

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With overhead wet cylinder liner, oil consumption is reduced and reliability is improved.

采用的顶置湿缸套技术，降低机油耗、提高可靠性。

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High nickel prices, buoyant revenues from tourism and cosy relations with oil-rich Venezuela have improved matters dramatically.

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Today, three years after Deepwater Horizon, offshore drilling is booming in the Gulf of Mexico, driven by the continued high price of oil, a series of massive new fields discovered with the help of improved exploration technology, and the growing difficulty of finding major new oil fields abroad.

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With improved transportation, the need for company towns largely disappeared, though communities built for oil rig workers are still active today.

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