India, for example, exports not just garments and cheap electronics-characteristic of many countries with similar levels of income per head-but ships, petrochemicals, steel and business services.
例如印度不仅出口服装和廉价电子产品——这是人均收入水平与印度相似的国家典型的出口产品——它还出口船舶、石油化工产品、钢铁和商业服务。
Ships cannot head directly from Cuba to the United States, though sometimes extra paperwork can circumvent this.
船只不能直接从古巴开往美国,尽管有些时候,可以利用一些特殊的商贸文件绕开这一点。
Second, the methods to predict the nonlinear motions of ships in head waves are discussed.
其次,研究船舶在迎浪海况下的非线性运动。
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