研究人员于2000年首次试验这种装置，用以侦测尼加拉瓜的火山口排出的气体。

The researchers first tried out their device on gas emissions from Nicaraguan craters in 2000.

youdao

研究人员已经指出，注定要成为神经元的细胞，会从脑室迁移到嗅球这一对构造，它会接收鼻子里侦测气味的细胞所传来的讯息。

Researchers have shown that cells destined to become neurons travel from the ventricles to the olfactory bulbs, a pair of structures that receives input from odor-sensing cells in the nose.

youdao

几个国家的研究人员现在正在进行调查，是否有狗有能力在早期和可治疗阶段侦测出肺癌、乳腺癌、前列腺癌和皮肤癌。

Researchers in several countries are investigating whether dogs have the ability to detect lung, breast, prostate and skin cancer at an early and treatable stage.

youdao