نمایش نتیجه 1 تا 2 از 2 نتیجه یافت شده برای diatomite:
n: any of the algae of the class Bacillariophyceae, noted for symmetrical and sculptured siliceous cell walls. After death, the cell wall persists and forms diatomite. Diatoms first appeared in the Cretaceous period and still live today.
n: a rock of biochemical origin, which is composed of the siliceous (glassy) shells of microscopic algae called diatoms.
© ۱۳۹۲-۱۳۹۷ این اثر شامل قانون حمایت از مولفین بوده و هرگونه کپی برداری از آن ممنوع است.
