Kusetshenziswe ama-dredges amabili womkhiqizo we-Ellicott® ahlanganisiwe ukusiza ukuvula isiteshi sokuzulazula singene eGrand Traverse Harbour eMichigan, iphrojekthi eyaqedwa ngoJulayi 2020. Itheku lagcwala isihlabathi sesitembu, imfucumfucu yamatshe amnyama namnyama ampunga okusalile ekucutshungulweni okungokomlando insimbi. Phakathi nekhulu le-19 nele-20 leminyaka, izigayo zesitembu eNhlonhlweni YaseKeweenaw zakhiqiza imfucumfucu eyizigidi ezingama-25, eyabekwa ngokusemthethweni ngaseLake Superior. Ukuguguleka kwenhlabathi nemisinga phezu kwe ...
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