No the notes seem to be right. Total volume is capital v, molecular volume is little v.

我看看……讲义好像是对的，大v表示总体积，小v表示分子体积。

youdao

If it has its calculations right, that total will rise to 645m by 2015.

如果它自己的计算正确的话，那么其总额将于2015年上升至6.45亿。

youdao

Precision is the total number of digits both left and right of the decimal.

Precision是指小数点左右的总位数。

youdao

Right now the total value of single-family homes in the United States is about twenty trillion dollars and the market has been becoming increasingly speculative.

如今,美国家庭的,房产总值,接近2万亿美金,而且,市场变得越来越投机

耶鲁公开课 - 金融市场课程节选

No single party had a majority in the 56-member parliament but the three-party, centre-right coalition in power had 30 seats in total - one more than needed to pass the bailout.

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The White Wolves is the most obscure of about a dozen tiny far-right organisations in Britain whose total membership is no more than a few hundred.

ECONOMIST: Crime

Right-arm seamer Gul returned 5-6 to help bowl the Kiwis out for 99, the lowest total of the tournament so far.

BBC: Gul heroics inspire Pakistan win