Topslag refining process in CASOB unit under inert gas protection is introduced.

介绍了利用CASOB装置在惰性气体保护下进行顶渣精炼工艺过程。

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The invention relates to the welding field, in particular to a gas protection welding wire with nano coating.

本发明涉及焊接领域，特别涉及一种具纳米涂层的气体保护焊丝。

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The feasibility of realization of AWJ with gas protection layer in submerged water is confirmed by computational example.

通过算例论证了淹没环境下，实现气体保护层磨料水射流的可行性。

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Western intelligence officials have reportedly urged each country to boost security measures and to provide better protection for ships,especially oil and gas tankers.

VOA: standard.2010.01.07

Items are now housed in a temperature and humidity-controlled strong-room protected by an inert gas fire protection system, which would douse the room in gas to kill flames instead of using water.

BBC: Carlisle's ?8.2m archive centre opens

Not according to a new econometric study that concludes no more than 20% of existing coal generation is likely to switch over to gas, even if the Environmental Protection Agency drives up the cost of coal generation and gas prices stay at their current, low rates indefinitely.

FORBES: Frack Gas Not Likely To Displace King Coal, Study Suggests

The reinvestment of revenues from oil and gas extraction into the permanent protection of parks, open spaces, wildlife habitat, and access for recreational activities.

WHITEHOUSE: America's Great Outdoors Initiative