Jianghan Plain and Dongting Lake Plain

Heat Exchange Tube and Tube Sheet

Tube in Tube Structure

Tube to Tube Sheet

Tube-in-tube

welding between heat exchanging tube and tube sheet

Tube—in—tube

a plain

abbreviated plain address

Abdominal plain films

abrasion plain

abyssal plain

aeolian plain

aggradated plain

aggradation plain

aggradational plain

aggregation plain

Alluvial Piedmont Plain

alluvial plain