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- The belt sag, the primary run resistance, the equivalent mass of roller are easily neglected or simplified in the previous dynamic design. 如果对带式输送机的动态特性有了深入的了解,同时考虑设计的经济性,则可对其进行动态、优化设计与合理控制。 近几年来对于此问题,国内外许多专家和学者都做出过很多的研究和论述,但是输送带的悬垂度、主要运行阻力及托辊的等效质量是动态分析模型中经常被忽略或简化的三个因素。
- This paper described the non-linear motion equation of belt conveyor based on belt sag,with a lumped element model. It deduced the belt equivalent stiffness and studied its non-linear property. 用离散单元模型建立了基于胶带悬垂度的带式输送机非线性运动微分方程,推导了胶带等效刚度表达式,分析其非线性特性及对运动微分方程的影响。
- Her gun is almost as big as she is. Her weapon belt sags on her hips. 她的枪简直和她一样高，挂枪的腰带下垂在她的臀部。
- Thanks to I had tied then the safety belt. 幸亏我当时系上了安全带。
- The chair seat had a slight sag. 椅子的座位略微下陷。
- I thought his remarks were quite below the belt. 我觉得他的话十分尖酸刻毒。
- My trousers only stay up if I wear a belt. 我这条裤子要是不系皮带就往下掉。
- She wears a ribbon belt round her waist. 她在腰部束了一条缎带。
- She wore a wide belt round her waist. 她束了一条宽腰带。
- The air hostess asked everyone to belt up. 空中小姐要大家扣好安全带。
- My shirt hikes up if I don't wear a belt. 我不束腰带的话，衬衣就会向上滑。
- He remained hanging in midair, saved by the belt. 他吊在半空中，安全带救了他。
- A belt or girdle worn by men in ancient Greece. 腰带古希腊男人用的腰带或束带
- A belt of trees grew between the two fields. 两块田之间有一条树木带。
- The plane's take off. Please fasten your seat belt. 飞机起飞了。请系好安全带。
- His cheeks are beginning to sag. 他的双颊开始松垂。
- There is a belt of trees between the two fields. 那两块地之间有一片狭长树林。
- The shelves sag under the weight of the books. 书架因书的重量而下陷。
- Her remark was a bit below the belt. 她的话有点不太公正。
- Rosie really knows how to belt out a song. 罗琦的确懂得如何声情并茂地演唱一首歌曲。
