Tianjin is a major trade center with connection to seaports on the bohai gulf .
天津坐拥渤海湾的海港，是主要的贸易中心。
Scanners at seaports are unable to detect the presence of deadly radiation in cargo containers .
海港的扫描仪还不能探测出集装箱里致命的放射物质。
The flow of many japan-bound goods at chinese air and seaports appeared to have slowed , said an official at one of japan 's largest trading companies .
日本最大一家贸易公司的一位管理人士表示，中国航空港和海港许多出口日本货物的发货似乎有所减速。
That elements of the u.s. nuclear umbrella pass in and out of japanese seaports has always been an open ( but much detested ) secret .
组成美国核保护伞的各种物件在日本海港进进出出一直是个公开（但也被人深恶痛绝）的秘密。
Once detection technology is improved , should all cargo arriving at seaports be scanned for radiation ?
