tightness test for hull 中文意思是什麼
tightness test for hull
解釋
船體密性試驗-
Test method of hull tightness for sea - going steel ships
鋼質海船船體密性試驗方法 -
Test method of hull tightness for fiberglass reinforced plastic fishing vessel
玻璃鋼漁船船體密性試驗方法
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