gap in expectation

基本解释

It also dismissed as myth a widely held expectation that tar sands in Canada could fill the supply gap.
报告还驳斥了此前普遍抱有的神话般的期望，即加拿大的含油砂将能填补石油供应的缺口。
However, during the procedure of teaching practice in senior high school, there is a great gap between the expectation from the modern teaching technique and the current situation.
然而，在现阶段的高中数学教育教学实践中，教师应用现代教育技术的期望与实际情况还存在着很大的差距。
The disagreement between request and report in medical science and technology novelty search is similar to the expectation gap in audit.
医药卫生科技查新工作中查新需求与查新结论不一致的情况与审计行业中的期望差距现象类似。

The expectation gap was even greater in training, where the assigned value was close to 4.5, while the actual value was slightly above 3.
FORBES: The Career-Development Gap: Why Employers Fail To Retain Top Talent