的意思 certified volumetr'c flask

1. The laboratory technician carefully measured the liquid in the certified volumetric flask.
实验室技术人员仔细地测量了认证的量瓶中的液体。

2. Make sure to use a certified volumetric flask when preparing the standard solution.
在准备标准溶液时，请务必使用认证的量瓶。

3. The scientist calibrated the certified volumetric flask before conducting the experiment.
科学家在进行实验前校准了认证的量瓶。

4. It is important to handle the certified volumetric flask with care to avoid any contamination.
重要的是小心使用认证的量瓶，以避免任何污染。

5. The manufacturer guarantees the accuracy of the measurements made with the certified volumetric flask.
制造商保证使用认证的量瓶进行的测量的准确性。

6. The student poured the solution into the certified volumetric flask to accurately measure its volume.
学生将溶液倒入认证的量瓶中，以准确测量其体积。