Slowly dissolving the varnish, the conservator uncovered crisp colors below.

慢慢地溶解清漆，保管员在下面发现了清晰的颜色。

Now, possibly the most satisfying method of art restoration is cleaning off yellowed varnish with some careful chemistry.

艺术品修复最令人满意的方法可能是用一些小心的化学物质清除泛黄的清漆。

He tried using it as a varnish and a water-proofing material.

他试着用它做清漆和防水材料。

To recover the original, the conservator began removing the outer varnish coat.

为了恢复原件，管理员开始去除外层清漆。

But this synthetic varnish will not change in color as it grows old.

但这种合成漆不会随着时间变迁而改变颜色。

It was likely just a glass or tin drop varnished to look like a pearl.

它可能只是一颗漆上 珍珠色泽的玻璃球或锡球。

It was a poor job, unsteady, the patches of wood-filler showing through, and the varnish heavy and uneven.

这是个摇摇晃晃的糟糕作品，木材填料的缀饰露了出来，漆涂得又厚又不均匀。

They went on with their work of sanding or varnishing the newly finished benches, but they didn't talk.

他们在为刚完成的板凳打磨或上清漆，但没有互相交谈。

But the natural varnishes past restorers applied eventually darkened, which is what gives older paintings that aged, yellowy look.

但是，过去的修复师所使用的天然清漆最终会变黑，这就是旧画老化、发黄的原因。

First, they'll slowly wipe away the old varnish using a chemical like acetone, a carbon-based molecule that's great at dissolving resin.

首先，他们会用丙酮等化学物质慢慢擦掉旧清漆，丙酮是一种碳基分子，非常擅长溶解树脂。