5 sentences

1. 为什么之前感应器没探测到呢？

   wèi​shén​me zhī​qián gǎn​yìng​qì méi tàn​cè dào ne?

   Why didn't sensors pick it up before now?

   Source: OpenSubtitles

2. 潜艇利用声纳探测水下的目标。

   qián​tǐng lì​yòng shēng​nà tàn​cè shuǐ xià de mù​biāo.

   Submarines use sonar to detect underwater targets.

   Source: Dong Chinese Dictionary

3. 雷达通过发射电磁脉冲来探测目标。

   léi​dá tōng​guò fā​shè diàn​cí mài​chōng lái tàn​cè mù​biāo.

   Radar detects targets by emitting electromagnetic pulses.

   Source: Dong Chinese Dictionary

4. 科学家使用雷达探测地下的金属矿藏。

   kē​xué​jiā shǐ​yòng léi​dá tàn​cè dì xià de jīn​shǔ kuàng​cáng.

   Scientists use radar to detect underground metal deposits.

   Source: Dong Chinese Dictionary

5. 科学家们正利用先进的望远镜探测天王星的大气成分。

   kē​xué​jiā men zhèng lì​yòng xiān​jìn de wàng​yuǎn​jìng tàn​cè Tiān​wáng​xīng de dà​qì chéng​fèn.

   Scientists are using advanced telescopes to detect the atmospheric composition of Uranus.

   Source: Dong Chinese Dictionary