| vadose zone |
บริเวณชั้นดินส่วนเหนือระดับน้ำใต้ดิน |
| vaporization |
การกลายเป็นไอ, ระเหย |
| zero-slump concrete |
คอนกรีตแห้ง |
| zoned dam |
เขื่อนถมแบบที่ประกอบด้วยแถบชั้นดินหลายประเภท |
| A Coatings |
(English) Coatings on hot-dipped galvanized steels processed to convert the coating completely to zinc-iron alloys; dull gray in appearance, have no spangle, and after proper preparation, are well suited for painting.
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| Bainite |
(english) A eutectoid transformation product of ferrite and a fine dispersion of carbide, generally formed at temperatures below 840 to 930 F (450 to 500 C): upper bainite is an aggregate containing parallel lath-shape units of ferrite, produces the so-called feathery appearance in optical microscopy, and is formed at temperatures above about 660 F (350 C); lower bainite consists of individual plate-shape units and is formed at temperatures below about 660 F (350 C). Also, a slender, needle-like (acicular) microstructure appearing in spring steel strip characterized by toughness and greater ductility than tempered Martensite. Bainite is a decomposition product of Austenite best developed at interrupted holding temperatures below those forming fine pearlite and above those giving Martensite. |
| Baked Core |
(english) A core which has been heated through sufficient time and temperature to produce the desired physical properties attainable from its oxidizing or thermal-setting binders. |
| Balling Drum |
(english) A rotating drum that is used for adding moisture to the sinter mix in the Blast Furnace. Also, it enhances a balling action where the smaller sized materials adhere to larger materials. |
| Base Metal |
(english) (1) The metal present in the largest proportion in an alloy; (2) the metal to be brazed, cut or welded; (3) after welding the part of the metal that was not melted during the process. |
| Bastard |
(english) Threads,parts,tools and sizes that are not standard, such as, “Bastard Nuts”, “Bastard Plus”, “bastaard fittings and so forth. The term also refers to a standard coarse cut file. |
