传感器(chuán gǎn qì) - sensor in Mandarin

这zhè个ge房fáng间jiān里lǐ有yǒu温wēn度dù传chuán感gǎn器qì。

There's a temperature sensor in this room.

手shǒu机jī里lǐ有yǒu很hěn多duō小xiǎo传chuán感gǎn器qì。

There are lots of tiny sensors in a phone.

传chuán感gǎn器qì发fā现xiàn空kōng气qì不bù好hǎo，就jiù会huì提tí示shì你nǐ。

When the sensor detects poor air, it alerts you.

门mén口kǒu的de传chuán感gǎn器qì一yí看kàn到dào人rén，门mén就jiù开kāi了le。

As soon as the sensor at the entrance sees someone, the door opens.

他tā们men在zài工gōng厂chǎng里lǐ研yán究jiū新xīn的de传chuán感gǎn器qì。

They're developing new sensors at the factory.