锆石开始是熔融的岩浆，来自火山的热熔岩。

Zircon starts off as molten magma, the hot lava from volcanoes.

youdao

"有时候，在提炼的过程中会出现这些情况：一个气泡没有被移除，一个砂粒没有熔化，（熔融的）锡的一次颤动把波纹带进了玻璃带中。

Occasionally, a bubble is not removed during refining, a sand grain refuses to melt, a tremor in the tin puts ripples into the glass ribbon.

youdao

有些机器上会沉积熔融的塑料丝。

Some machines deposit filaments of molten plastic.

youdao

So, I went to the library and I looked up Advances in Molten Salt Chemistry volume six because there's an article in there about the chemistry and electrochemistry of magnesium production.

所以我去了趟图书馆，查阅了,第六版的《高级熔融态盐化学》,因为那里面有一篇关于生产镁的,化学和电化学的文章。

麻省理工公开课 - 固态化学导论课程节选

And you have this liquid alloy at 600 degrees centigrade, and it turns into a molten salt.

你得到了液态合金,在600度的时候，它就转变成熔融盐。

麻省理工公开课 - 固态化学导论课程节选