而这些实验的传统方法给教学带来了诸多不便，如设备工作量大、实验周期长等。
However, the traditional ways of these experiments are not convenient for teaching, such as heavy workload and long experiment period.
在相态分析中，不同相态同一种元素的含量相差很大，给溶液的提取、制备及测定工作带来了很多不便。
In phase analysis, contents of the same element with different phase are largely differ so that it brings difficulties for extracting, preparation and determination of the solution.
高职院校公共机房使用频率高，使用对象技术水平参差不齐，这给机房管理老师的日常工作带来了很大的不便。
In higher vocational colleges, there is a high using frequency in public computer room, and technical levels of users are different, which brought much inconvenience for computer teachers.
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