摘要:Japanese yenThe yen (sign: ¥; code: JPY) is the currency of Japan. It is the third JPYmost-traded[阅读全文:]

摘要:Shipbuilding Shipbuilding is the construction of ships. It normally takes place in a specialized faci[阅读全文:]

摘要:The pound sterling (symbol: £; ISO code: GBP), often simply called the pound, Poundis the curre[阅读全文:]

摘要:Calcium (pronounced /ˈkælsiəm/) is the chemical element with the symbol Ca and atomic[阅读全文:]

摘要:Strontium (pronounced /ˈstrɒnʃiəm/, /ˈstrɒntiəm/, or /ˈstr[阅读全文:]

摘要:PipeA pipe is a tube or hollow cylinder used to convey materials or as a structural component. T[阅读全文:]

摘要:Gross Register TonnageGross register tonnage (GRT, grt, g.r.t.) represents the total internal volume[阅读全文:]

摘要:TonneA tonne (t) or metric ton (U.S.), also referred to as a metric tonne, is a measurement of mass e[阅读全文:]

摘要:Brass is any alloy of copper and zinc; the proportions of zinc and copper can be varied to create a r[阅读全文:]

摘要:CorrosionCorrosion can be defined as the disintegration of a material into its constituent atoms due[阅读全文:]