magnetic bead的用法和樣例：
例句
- Each bead is coated with fluorescently labeled antibodies that bind to a particular microbe.
每一顆磁珠表面都接有標上螢光劑的抗體，可以結合特定的微生物。 - The machine, which can be connected to an air sampler, mixes any particles present in the sampled air with a solution of microscopic magnetic beads.
這個機器連接到一個空氣采樣器，會將空氣樣本中所有的粒子與系統里的微磁珠溶液混合在一起。
