mercury-free的用法和樣例：
例句
- The compo-sition and technology of the paper liner contained indiumsubstituting for mercury are described.
無汞含銦漿層紙可用於無汞高功率電池。 - In view of the detrimental effect of mercury and chromium in determination of iron by means of dichromate titration, a new method was proposed containing no mercury and chromium.
針對重鉻酸鉀法測定鐵含量中汞和鉻的有害影響，介紹了一種無汞無鉻測定法。
