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人工器具测深
释义
人工器具测深
Encyclopedia
工学
人工器具测深
释
artificial tool sounding
人工器具测深
利用测深杆或水砣等器具测量水深的工作。20世纪50年代前普遍采用的获取海洋和内陆水域水深的作业模式。
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celadon glazed vase with two phoenix-shaped ears made by Longquan Kiln
Celadon lotus porcelain zun of Northern Dynasty
celadon lotus statue
Celadon of Eastern Han Dynasty
celadon well unearthed from ‘ Xiping 4th Year ' tomb
Celaeno
celandine
Celbalrai
Celebrating Mother's Birthday
Celebration of the 60th Birthday Anniversary of Emperor Kangxi
celebration opera
celebration public relations activities
Celebrities of Shangshi in Chinese
Celebrity
celebrity house
celebrity photography
Celedonio Romero
celery
celery bacterial soft rot
celery leafminer
celery leaf spot
celery root-knot nematode disease
Celescope
celescope
Celescope Catalogue of UV Magnitude
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