Zinc is a chemically active metal, but its corrosion products are generally dense and adherent.

锌是一种化学性质活泼的金属，但它的腐蚀生成物一般有高的密度和附着力。

youdao

The influence of active metal component, its molar ratio and molecular sieve component was investigated.

考察了活性金属组分、摩尔比、分子筛组分等因素对催化剂性能的影响。

youdao

Corrosion resistance: Titanium is a kind of very active metal with low equilibrium potential and strong trend of thermodynamic corrosion in media.

耐腐蚀性能：钛是一种非常活泼的金属，其平衡电位很低，在介质中的热力学腐蚀。

youdao

However, it is not possible to anneal the metal oxides, an active material, at this high temperature on flexible polymer substrates.

ENGADGET: Korean scientists solve flexible battery riddle (video)

Conveyor belts carried long, wafer-thin strips of metal into printing-press-like rollers, which coated them with electrode-active material.

NEWYORKER: Green Giant