3 sentences

1. 这种瓷器表面的裂纹被称为开片，非常有特色。

   zhè zhǒng cí​qì biǎo​miàn de liè​wén bèi chēng​wéi kāi piān, fēi​cháng yǒu tè​sè.

   The fine cracks on the surface of this porcelain are called 'crazing' and are very distinctive.

   Source: Dong Chinese Dictionary

2. 从这张X光片可以清楚地看到，他的左腿骨干部位出现了裂纹。

   cóng zhè zhāng X​guāng​piàn kě​yǐ qīng​chu de kàn​dào, tā de zuǒ​tuǐ gǔ​gàn bù​wèi chū​xiàn le liè​wén.

   From this X-ray, it is clearly visible that there is a crack in the shaft of his left leg bone.

   Source: Dong Chinese Dictionary

3. 这块玉石内部有几处细小的裂纹，影响了它的品质。

   zhè kuài yù​shí nèi​bù yǒu jǐ chù xì​xiǎo de liè​wén, yǐng​xiǎng le tā de pǐn​zhì.

   There are several small cracks inside this jade, which affect its quality.

   Source: Dong Chinese Dictionary