watchmakers' broach
... watch-glass 表玻璃，表面皿 watchmakers' broach 根管扩大针 watch ctrap 表带 ...
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牙髓根管扩大针 pulp canal reamer
平头根管扩大针 flat-ended root canal reamer
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本实用新型的钛镍根管扩大针用于牙科中牙髓病与根尖周病治疗。
The nickel-titanium root canal reamer of utility model is applied to cure the dental pulp disease and the periapical disease of the dentistry.
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扩大针进入根管角度及根管长度因根而异。
The angles and length of root canal depended on different roots.
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