When these surfaces came into contact with the magnetite, an oxygen atom could be transferred from quartz to magnetite, forming a new mineral, hematite.

当这些表面和磁铁矿一接触，氧原子就能从石英砂转移到磁铁矿，形成了一种新的矿物，赤铁矿。

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In the workplace, their mothers had come into contact with such solvents as toluene, xylene, mineral spirits, isopropyl alcohol and trichloroethylene.

在工作场所，他们的母亲接触过诸如甲苯、二甲苯、矿物精炼物、异丙醇和三氯乙烯等有机溶剂。

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The article has established grade model and tonnage model to 277 contact metasomatic copper deposits of the whole country, based on "the Mineral Resources Data base of the whole country".

依据“全国矿产储量数据库”的资料，对全国277个接触交代型铜矿床建立了品位模型、吨位模型以及品位—吨位联合模型。

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To understand the mechanism, Dr Clarke and his collaborators made a synthetic version of the bacterium and discovered that the organism generated a charge, and effected a chemical change, when in direct contact with the mineral surface.

BBC: Bacteria power 'bio-battery' breakthrough