… free-piston generators for gas turbines, consisting of two horizontally-opposed driving pistons sliding in a common … at each end to form compression cylinders in which slide two other pistons, connected to the driving pistons, forming …
… amplify electro‑magnetic radiation in the wavelength range between 1 nanometre and 1 millimetre (ultra‑violet, visible … consisting of a case of plastics incorporating two fixed lenses and a lever‑operated revolving mechanism …
… ion‑exchange or filtering. These products fall in two groups : (I) Products generally characterised by a … transparent flakes having curved surfaces. The two types of products cited at (1) and (2) above are of very …
… of fabrics to prevent the formation of snags in hosiery and knitwear. They are generally based on polymers, natural … mixtures of chemically defined compounds with at least two reactive groups (e.g., bis(hydroxymethyl) compounds, …
… in the functions performed by those ingredients in the two types of solutions. (2) Radiation-curable varnishes , … other radiation to form cross-linked, solvent-insoluble network structures (a hard, dry film). Products of this type …
… of former crops, roots, etc. They generally consist of two large wheels and a drum fitted with cutting blades. … , similar to a harrow but fitted with hooked teeth in two rows converging towards an openslatted container, to …
… signs. (E) Burglar alarms . These consist of two parts : a detecting part, and a signalling part (bell, … (F) Fire alarms . Automatic alarms also consist of two parts : a detecting part, and a signalling part (bell, …
… with sand and carbon in an electric furnace. There are two main varieties of phosphorus : (a) “White” phosphorus … extracted from natural arsenical pyrites. It exists in two main forms : (a) Common, so‑called “metallic” arsenic, …
… panels . The top layer (wear layer) is commonly made from two or more rows of strips making up the panel. These panels … sawn lengthwise through their thicknesses to obtain two shakes, each then having a split face and a sawn back. …
