| boiler (An enclosed vessel in which water is heated and circulated, either as hot water or as steam, for heating or power) |
غلاية |
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| boiling point (The temperature at which the transition from the liquid to the gaseous phase occurs in a pure substance at fixed pressure) |
نقطة الغليان |
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| book (A collection of leaves of paper, parchment or other material, usually bound or fastened together within covers, containing writing of any type or blank pages for future inscription) |
كتاب |
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| bookkeeping (The art or science of recording business accounts and transactions) |
المحاسبة |
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| border (The dividing line or frontier between political or geographic regions) |
الحدود |
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| boron (A very hard almost colourless crystalline metalloid element that in impure form exists as a brown amorphous powder. It occurs principally in borax and is used in hardening steel) |
بورون |
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| botanical conservatory (Gardens for the conservation of rare species of plants) |
محمية نباتية |
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| botanical garden (A place in which plants are grown, studied and exhibited) |
حديقة نباتية |
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| botany (A branch of the biological sciences which embraces the study of plants and plant life) |
علم النباتات |
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| bottle cap (No definition needed) |
غطاء زجاجة |
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| boundary conditions |
الشروط الحدِّية |
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| boundary crossing (Crossing of a state border) |
عبور الحدود |
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| boundary layer (The layer of fluid adjacent to a physical boundary in which the fluid motion is significantly affected by the boundary and has a mean velocity less than the free stream value) |
الطبقة الحدية |
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| boundary value |
القيمة الحدِّية |
|
| boundary value |
المحتوى المائي للهواء |
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| bovid (Any animal belonging to the Bovidae family) |
بقري |
|
| bovine |
بقري |
|
| brackish water (Water, salty between the concentrations of fresh water and sea water; usually 5-10 parts x thousand) |
مياه قليلة الملوحة |
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| bradyseism (A long-continued, extremely slow vertical instability of the crust, as in the volcanic district west of Naples, Italy, where the Phlegraean bradyseism has involved up-and-down movements between 6 m below sea level and 6 m above over a period of more than 2.000 years) |
اختلاجات أرضية |
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| branch of activity (A specialized division of a business or other organization) |
قطاع النشاط |
|