The Tanzanian government has once again started mining the lake for soda ash, used for making chemicals, glass and detergents.

坦桑尼亚政府再次开始在湖中开采用于制造化学品、玻璃和洗涤剂的纯碱。

The Leblanc process yielded quantities of good-quality, inexpensive soda ash.

勒布朗法生产了大量质量好、价格便宜的纯碱。

Today, the chemicals needed to produce soda ash and baking soda also come from mines.

今天，生产纯碱和小苏打所需的化学品也来自矿山。

Soda ash is the alkali obtained from ashes that combines with fat to form soap.

纯碱是从灰烬中提取的碱，与脂肪结合形成肥皂。

Around 60% of all the glass in the U. S. is clear, it's the easiest glass to make because it's just silica, limestone and soda ash.

在美国，将近60%的玻璃是透明的，这种玻璃制作简单，因为它仅包含二氧化硅、石灰岩和苏打粉。

And their Chemical Division is the world's second largest manufacturer of soda ash, which is used for the manufacturing of glass.

他们的化学部门是世界第二大纯碱生产商，纯碱用于制造玻璃。

Although the planned operation will be located more than 40 miles away, drawing the soda ash in through pipelines, conservationists worry it could still upset the natural water cycle and breeding grounds.

尽管规划的操作将位于 40 多英里之外，并通过管道抽取纯碱，但环保人士担心，这仍可能破坏自然水循环和繁殖基地。

It's made from soda ash, which at the time, it came from the ashes of sodium-rich marine plants like seaweeds, or it was made synthetically by reacting table salt, also known as sodium chloride, with other chemicals and minerals.

它由苏打灰制成，当时纯碱来自海藻等富含钠的海洋植物的灰烬， 或者是通过食盐（也称为氯化钠） 与其他化学物质和矿物质反应合成制成的。