应用粒子电荷测定仪(PCD)的流动电位变化判定阳离子淀粉胶体滴定的终点。
A particle charge detector (PCD) was applied to determine the end point of colloidal titration for cationic starch having small charge density.
结论：MTT法较之常规直接观察法结果更为客观、准确，且可量化，因而可以很好的替代肉眼观察法来判定真菌药敏试验的终点。
Conclusion: MTT assay is more objective, more precise than routine direct observing, then it can replace routine direct observing assay to determine antifungal endpoint.
滴定是在水溶液中进行的，终点易于判定。
So the titration end could be easily identified, the procedure is not harmful to environments and operators.
目前，国内研制水平仍然停留在黑白图像判定水平上，我国举行的大型赛会，电动终点计时设备主要是从国外引进。
At present, the studying level in our country is still (staying) around the black and white. The electric timing equipments for games are primarily from abroad.
目前，国内研制水平仍然停留在黑白图像判定水平上，我国举行的大型赛会，电动终点计时设备主要是从国外引进。
At present, the studying level in our country is still (staying) around the black and white. The electric timing equipments for games are primarily from abroad.
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