There are provided a carbon dioxide storage apparatus and a carbon dioxide storage method which, through direct injection of carbon dioxide into an underground brine aquifer, can store carbon dioxide efficiently in the brine aquifer. The marking instrument also includes a marking platform having at least one marking element disposed thereon and a cap element having an opening that corresponds to a geometric shape of a mark to be produced or the geometric shape of an answer space. The intensity component amplitude modulated by a beat is detected in the emerging wave ), to distinguish and represent this nano-object in the refractive medium. 5 time or less of the average particle size of the hardener for the epoxy resin is from 0. A guide bar is disposed diagonally relative to the first and the second table rails and engages the saw plate to guide the saw plate diagonally in response to simultaneous movement of the saw rail longitudinally and the mounting plate laterally.