2 sentences

1. 实验室里有许多精密器械。

   shí​yàn​shì lǐ yǒu xǔ​duō jīng​mì qì xiè.

   There are many precision instruments in the laboratory.

   Source: Dong Chinese Dictionary

2. 这名歹徒因为持械行凶被警方当场抓获。

   zhè míng dǎi​tú yīn​wèi chí xiè xíng​xiōng bèi jǐng​fāng dāng​chǎng zhuā​huò.

   The gangster was caught on the spot by the police for armed assault.

   Source: Dong Chinese Dictionary