普通のガラスは、落としたり何か物がぶつかったりすると簡単に割れるが、車などに使われる強化ガラスはなかなか割れない。実は、二つのガラスの違いは作る方法にある。普通のガラスは、原料を加熱した後ゆっくり冷やすので、その過程(注1)で、表面に目に見えないたくさんの傷ができ、力を加えると傷が広がって割れる。―方、強化ガラスは加熱後急激(注2)に冷やすので、ガラスの表面近くは圧縮(注3)された層(注4)となり、力が加わっても表面の傷が広がりにくく、割れにくい。
(注1)過程:物事が進む途中のこと
(注2)急激:変化や動きが急で、激しい様子
(注3)圧縮:力を加えて、縮めたり小さくしたりすること
(注4)層:上下に重なること、重なっているもの
AI translation, cross-checked between two models.
Ordinary glass breaks easily if it is dropped or struck by something, but tempered glass used in cars and similar applications does not break easily. In fact, the difference between the two types of glass lies in how they are made. Ordinary glass is cooled slowly after the raw material is heated, so during that process many invisible scratches form on its surface; when force is applied, the scratches spread and the glass breaks.(注1) Tempered glass, on the other hand, is cooled rapidly after heating, creating a compressed layer near the surface; therefore, even when force is applied, surface scratches are less likely to spread, making the glass harder to break.(注2)(注3)(注4)
(Note 1) 過程: the stages something goes through as it progresses
(Note 2) 急激: a sudden and intense change or movement
(Note 3) 圧縮: applying force to compress or make something smaller
(Note 4) 層: things stacked one above another, or something formed in layers
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