Based on tobacco company evaluations of upper-stalk tobacco from these trials, ripeness and separation of the uppermost leaves had the greatest effect on tip grade production.
根据烟草公司对来自从这些试验的上部烟叶的评估，成熟度和最上部叶的分次采收对顶叶等级的产生影响最大。
2
Guidance counsellors support uppergrade students in their studies and choice of further education.
辅导员的支持，进一步研究和教育的选择上年级学生。
3
In the cases of upper urinary tract carcinoma associated with bladder carcinoma, higher grade malignancy and lower ureter carcinoma the recurrence rate was higher and usually occurred within 3 years.