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thickness ratio
avia. 相对厚度; 厚弦比
met. 厚度同轧辊直径之比; 板材厚度同轧辊直径之比; 带材厚度同轧辊直径之比
oil 厚度比
thickness ratio: 43 phrases in 18 subjects
Agriculture1
Architecture1
Automobiles1
Aviation2
Bridge construction8
Explosives and Explosive Ordnance Disposal1
General1
Hydroelectric power stations1
Metallurgy3
Nautical2
Navigation1
Oil / petroleum3
Plastics2
Rail transport1
Shipbuilding1
Space1
Technology10
Wind Energy3