Nhật Bản ra mắt máy khoan hầm lớn nhất thế giới
Công ty Hitachi Zosen ngày 25/12 chính thức ra mắt máy khoan đường hầm lớn nhất thế giới nặng 7.000 tấn với đường kính 17,45m và tổng chiều dài lên tới 110m...
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UeG6tlFFKeG7teG6tuG7iuG7kkBR4buQ4bq24bu24buk4buY4bq2UOG7uOG7plHhurbhu7bDiVLhurbhu7JE4bq2UMav4bu24bq2UcOSUeG6tlBTUeG7kOG6ti4sUeG7kOG6tuG7iuG7ksOK4buK4bq24buK4buSUuG6tuG7iuG7pFHhu5DhurYu4buY4buM4buK4bq24bue4buYUeG7kuG6tuG7iFJEUeG7kuG6tlDEkCnhurbhu57hu5JSRFHhurbhu5JHUOG6tuG7iiRE4bq24buS4bq6UeG7kOKAneG7ty/hu7fDgC9Z4bqg4buZ4buSSlLhurZ04buYSuG7tlFEUCvDgC9Z4bqg