President;
International;
Permafrost;
Association;
P.O.;
Box;
7;
Woods;
Hole,;
MA;
02543;
USA;
International;
Permafrost;
Association;
Secretariat;
The;
University;
Centre;
in;
Svalbard;
(;
UNIS)P.O,;
Box;
1569171;
Longyearbyen;
NOR;
WAY;
国际冻土会议; 学术交流; 行业管理; 气候变化; 冻土工程;