在第一阶段，锥虫在皮下组织、血液和淋巴中繁殖。
In the first stage, the trypanosomes multiply in subcutaneous tissues, blood and lymph.
锥蓝成为美国第一个被批准用于白内障手术中对晶状体前极染色的产品。
Vision Blue is the first product approved in the United States for staining the anterior lens capsule during cataract surgery.
YK2 0 4 5数控磨齿机是目前国内研制的第一台七轴五联动的数控螺旋锥齿轮磨齿机。
YK2045 NC cylindroconical helix gear grinding machine is the first NC cylindroconical helix gear grinding machine of 5 axes linkage with 7 axes in our country.
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