 |
| |||
| shoeshine | |||
| pitch | |||
| cream for footwear; polish | |||
| asphalt; asphalt cement | |||
| bitumen; shoe polish | |||
| bitumen A generic term applied to natural inflammable substances of variable colour, hardness, and volatility, composed principally of a mixture of hydrocarbons substantially free from oxygenated bodies. Bitumens are sometimes associated with mineral matter, the nonmineral constituents being fusible and largely soluble in carbon disulfide, yielding water-insoluble sulfonation products. Petroleum, asphalts, natural mineral waxes, and asphaltites are all considered bitumens | |||
| betun: 61 צירופים, 13 נושאים |
| בְּנִיָה | 22 |
| בריאות | 1 |
| גַנָנוּת | 1 |
| הנדסת מכונות | 2 |
| חַקלָאוּת | 3 |
| כִּימִיָה | 15 |
| כללי | 3 |
| מדעי החומרים | 2 |
| נפט/נפט | 3 |
| פֶּחָם | 2 |
| פטנטים | 2 |
| תַחְבּוּרָה | 4 |
| תעשיית האנרגיה | 1 |