教学口语语言表现形式单一，缺乏感染力；
Spoken language of teaching is not attractive but monotonous.
本实用新型公开了一种框式叶画壁挂，解决了现有壁挂产品表现形式单一和防水防潮的问题。
The utility model discloses a frame-type leaf painting wall hanging, which solves the problems of the prior wall hanging product such single expression form and poor resistance to water and moisture.
研究表明，液浮摆式加速度计在过载振动复合环境下，因为结构变化而产生了较大的工作误差，这些误差的表现形式相当复杂，在单一环境实验中是无法体现的。
It is shown in research that because of the structural change of the Liquid Floated Accelerometer in OAVCE, there is more severe error which can not be found in single environment test.
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