China imezindua daraja refu zaidi duniani (Hong Kong-Zhuhai-Macau, 55km) linalokatisha baharini. Daraja hilo linapita pia chini ya maji ili kutozuia meli zanazopita eneo hilo. Limetengenezwa kuhimili matetemeko ya ardhi na vimbunga vinavyokumba eneo hilo.
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