基本解释n.悲悼；痛惜同根派生 英汉例句Oil and gas geochemical exploration technique is a direct deploration technique based on the detection of the subtle matters dominated by hydrocarbon gases. 油气化探技术以检测烃类气体为主的直接方法,具有快速、有效、成本低的优势,在天然气勘探中可发挥积极的作用。