The main precursor to plastic is a byproduct of petroleum refining called hydrocarbon gas liquids.

塑料的前身是炼的副产品，被称为液化烃气。

We must keep honing and refining until we find that noun, verb or adjective.

我们必须不断地推敲，直到找到这个词为止。

Despite the past glories, Dehua craftsmen never stop refining their skills.

德化白瓷艺术历久弥新，有赖于德化工匠一直以来对于技艺追求精益求精。

Extracting, processing and refining these types of minerals can be very expensive and time-consuming.

开采、加工再炼这些矿物成本极高，还非常费费力。

Gelder is vice president of refining at consulting company Wood Mackenzie.

盖尔德是咨询公司Wood Mackenzie炼业务的副总裁。

I spent a lot of time refining the forms.

我花了很多间来完善这些造型。

But mining and refining lithium can threaten the natural environment and contribute to pollution.

但开采和炼锂会危害自然环境，造成污染。

Well again, we've got to be careful about refining this.

同样 我们得谨慎炼这些理论。

Is it the cost of crude oil, taxes, refining and profits or distribution?

是原价格, 税收, 纯和利润还是分配?

Then there's the cost of refining the gas. That adds $1.12 per gallon.

然后还有炼的成本，每加仑再加上1.12美元。

That includes refining the gas, also transporting it and the profits for those companies.

这包括炼与以及这些公司的利润。

Before that, oil refining ability had not fallen in any year for at least 30.

在此之前，炼能力至少有30年没有下降过。

Rockefeller targets a byproduct of refining oil that for years has been thrown away.

洛克菲勒看准了炼中的一种副产品 很多年来 它都被当成废物丢掉。

It's a cycle, meaning you're constantly refining.

这是一个循环，意味着你需要不断改进。

So it's a process of training again, refining images here.

因此，这是一个再次训练的过程，旨在精炼图像。

The Iranian Petroleum Minister says the country has started refining its crude oil in Venezuela.

伊朗部长表示，该国已经开始在委内瑞拉炼原。

You have to read widely, constantly refining and redefining your own work as you do so.

你必须得广泛阅读涉猎，同不断精练并且重新定义自己的作品。

Well, AI is refining all the time.

嗯，人工智能一直在不断改进。

Well, those refining costs and profits are the smallest slice of what you pay at the pump.

好吧，那些炼成本和利润是你在加站支付的最小的部分。

Now it is not perfect, and I'm going to spend the rest of my life refining it.

这个框架不是完美的，我会用余生不断完善它。