Here, they are plied with a proprietary stimulant that accelerates biomineralisation and then allowed to sit for an hour or so to mature.

在这里，它们与一种加速生物矿化的专有兴奋剂混合，然后放置一个小时左右使其成熟。

It also has calcium ions dissolved in it—for the purpose of the exercise is to encourage the bacteria to generate from the ingredients provided crystals of calcium carbonate a few microns across—a process called biomineralisation.

它还含有溶解在其中的钙离子——因为该练习的目的是鼓励细菌从所提供的成分中产生几微米宽的碳酸钙晶体——这一过程称为生物矿化。