| 单词 | tetraethyl lead |
| 例句 | What he needed was a way to compare lead levels in the atmosphere now with the levels that existed before 1923, when tetraethyl lead was introduced. A Short History of Nearly Everything 2003-05-06T00:00:00Z On the other hand, lead was easy to extract and work, and almost embarrassingly profitable to produce industrially–and tetraethyl lead did indubitably stop engines from knocking. A Short History of Nearly Everything 2003-05-06T00:00:00Z Similarly, several decades later, the introduction of tetraethyl lead into gasoline raised environmental concerns, but was tolerated as a necessary lubricant for the adoption of the internal combustion engine. A History of the Energy We Have Consumed 2018-06-18T04:00:00Z In 1921, General Motors engineers discovered that tetraethyl lead could make internal combustion engines run more smoothly and reduce engine knock. Leaded gasoline is finally gone — but its toxic legacy lingers 2021-09-05T04:00:00Z Why did the petrol companies push tetraethyl lead instead of ethyl alcohol? Why did we use leaded petrol for so long? - BBC News 2017-08-27T04:00:00Z Back then, too, gasoline also contained tetraethyl lead to dampen knocking and increase octane. Don’t Waste Money on Premium Gas if Your Car Is Made for Regular 2016-09-22T04:00:00Z As Americans took to the road during the postwar boom in car travel, the amount of tetraethyl lead in the nation’s air and soil rapidly increased. 25 More Moments That Changed America 2016-06-28T04:00:00Z Thanks in large part to Needleman's work, the US began phasing out tetraethyl lead in 1975, and most of the planet followed suit. The fatal attraction of lead 2014-10-11T04:00:00Z She noted that the fuel and vehicle industries' rush to adopt tetraethyl lead, despite its grave public health implications, led to tremendous damage. Leaded gasoline is finally gone — but its toxic legacy lingers 2021-09-05T04:00:00Z Facing sceptical reporters at a press conference in October 1924, Thomas Midgley dramatically produced a container of tetraethyl lead - the additive in question - and washed his hands in it. Why did we use leaded petrol for so long? - BBC News 2017-08-27T04:00:00Z The FAA said that fuel is the last of its type in use in the United States that adds tetraethyl lead to boost octane to the level needed for high-performance airplane engines. FAA wants unleaded airplane fuel 2013-06-10T19:51:00Z Innospec claims to be the world's only producer of tetraethyl lead - a compound first added to petrol in the 1920s to help it burn more slowly. UK urged to ban lead fuel exports 2013-01-14T16:47:21Z The Innospec factory at Ellesmere Port was the sole manufacturer of tetraethyl lead for cars in the world after its ban in the US and Europe. Innospec executive fined over bribes to boost sales of toxic fuel additives 2010-08-09T18:11:00Z They knew there was a problem with tetraethyl lead. Why did we use leaded petrol for so long? - BBC News 2017-08-27T04:00:00Z |
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