Tiny sculpture process is a very very heavy gas-consuming fine and physical skills.

微雕工艺其实是一种很繁重很耗费精气和体力的技艺。

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The simulation results well reflect the special dispersion behaviour of heavy gas cloud.

数值模拟结果较好地反映了重气云团所特有的扩散行为。

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The model is divided into two parts which are LNG heavy gas diffusion and passive process.

模型分为两部分，LNG重气扩散阶段模型和被动扩散阶段模型。

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Switzer says that the industrial nature of gas drilling, with heavy truck traffic and noise, and occasional wastewater and chemical spills,has transformed their peaceful country life.

VOA: standard.2010.01.02

The heavy gas then sank to the ground and rolled in a cloud several tens of metres deep across the surrounding countryside.

BBC: 1986: Hundreds gassed in Cameroon lake disaster

Plus it combines more obscure names like Gulfport with nat-gas heavy hitters like Chesapeake and Exxon Mobil (NYSE: XOM).

FORBES: Nat-Gas ETFs For Obama Speak

In place of our heavy-duty gas stove, big-name pots and pans and enormous refrigerator, we now find ourselves using Barbie-size sinks, bar fridges and some pretty sketchy cookware.

WSJ: Can't Decide Where to Retire?