… microscopes in which a very fine beam of electrons is directed repeatedly onto different points of the sample. … diffraction apparatus . By means of a beam of electrons directed at a specimen, these produce diffraction patterns …
… amplifying device; they nevertheless remain classified in their respective headings in this Chapter, provided that, … as toys because of the character of the material used, their rougher finish, the lack of musical qualities or by …
… covered with textile, etc., while the other fits into the first and holds the textile in place. (2) Other parts of … from the mould and not yet usable as buttons. They normally require to be trimmed, pierced and polished, but are readily …
… of this kind are classified here as dextrins only if their reducing sugar content, expressed as dextrose on the … starches of Chapter 11 on the basis of changes in their properties, for example, solution and gel clarity, …
… shapes other than rectangular (including square), such as circular filter papers and boards. (2) Printed dials, … Chapter) i.e., those already provided with the perforations required for control of the loom (“punched” paper and …
… soft metal, wood, felt, textile material or leather; (2) wire brushes; (3) polishing pads. In general machine‑tools … and valve seats) whose function is to perfect, to the desired degree of precision, the work of other machines. …