n. 煤砖, 煤球

[化] 煤砖(包括煤球蜂窝煤等); (矿粉)团块; 压块; 坯块

[ noun ]
a block made from charcoal or coal dust and burned as fuel
<noun.artifact>

briquet \bri*quet"\, Briquette \Bri*quette"\, n. [Also
{briquet}.] [F., dim. of brique brick.]
1. A block of compacted charcoal, coal dust, or peat, etc.,
used as a fuel. Charcoal briquettes are a common fuel used
for the outdoor barbecue grill.
[Webster 1913 Suppl. +PJC]

2. A block of artificial stone in the form of a brick, used
for paving; also, a molded sample of solidified cement or
mortar for use as a test piece for showing the strength of
the material.
[Webster 1913 Suppl.]