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Boron (chemical symbol B)

แปลว่า(english) Element N. 5 of the periodic system. Atomic weight 10.82. It is gray in color, ignites at about 1112 (degrees) F. and burns with a brilliant green flame, but its melting point in a non-oxidizing atmosphere is about 4000 (degrees) F. Boron is used in steel in minute quantities for one purpose only- to increase the hardenability as in case hardening and to increase strength and hardness penetration.

BE

แปลว่า(english) Chemical symbol for Beryllium

Zn

แปลว่า(english) Chemical symbol for Zinc

BI

แปลว่า(english) Chemical symbol for Bismuth

Zr

แปลว่า(english) Chemical symbol for Zirconium

THE EMPLOYER

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Backing Sand

แปลว่า(english) The bulk of the sand in the flask. The sand compacted on top of the facing sand that covers the pattern.

Bridle Snubber

แปลว่า(english) The roll above the bridle rolls used to thread the strip. Also is used to steer the strip through the bridle.

Source reduction

แปลว่า(Environmental Engineering) The elimination or reduction of the waste at the source by modification of the actual process which produces the waste.

Reaeration

แปลว่า(Environmental Engineering) The dissolving of molecular oxygen from the atmosphere into the water.

Terminate the Contract

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