A two-mass dynamic model for multi-valve train system and its differential equation were established.

On the basis of the experiment a dynamic model of 4135 diesel engine has been established.

论文以实验数据为基础建立了4135柴油机动力特性的模型.

Then the dynamic model of ultrasonic decomposition is constructed.

通过研究构建了超声裂解动力学模型.

It'seems that the prediction result is close to that with dynamic model.

模型的预报结果接近动态控制模型的预报精度.

The second floor gave way under the weight of the machines.

三楼地板在机器的重压下坍了下去.

The roof collapsed under the weight of the snow.

屋顶被雪压坍了.

The bridge collapsed under the weight of the train.

桥在火车的重压下塌了.

The branch snapped off under the weight of the snow.

那树枝在积雪的重压下啪的一声折断了.

The roof collapsed under the weight of snow.

房顶在雪的重压下突然坍塌下来。

A clear correlation is suggested that mankind has exerted a tremendously negative influence on natural species.

这清楚地表明人类给自然物种带来了巨大的负面影响.

The residual stress imposes considerable negative influence on quality of the spiral welded pipe.

残余应力对螺旋焊管质量有显著影响.

But just as some outside influences exert a negative influence on skin, others have positive effects.

正如某些外界的影响可以对皮肤产生不良的影响, 一些外界影响也可以对皮肤产生积极的影响.

In addition, other parents have had a negative influence on their kids by setting bad examples.

此外, 还有一些家长的不良榜样给孩子带来负面影响.

Contrary to our expectation, initial factors have significant negative influence on application performance.

和预期相反, 企业的先天条件和采用动因对应用绩效产生显著负的影响.

Reasonable anti-takeover is helpful to mend the negative influence of hostile takeover.

合理的 反 收购有助于匡正与补足敌意收购的负面作用.

In the practice process, some negative influence came forth.

在实施过程中, 也出现了一些负面的影响.

However, the negative influence created by the floods is still limited.

但是也要看到洪水产生的这种影响是有限的.

My paltry efforts are not worth mentioning.

区区微劳，不足挂齿。

His net worth was not worth mentioning.

他的资产净值根本不值一提。

It's a trifling matter, not worth mentioning.

些须小事，何足挂齿？

The path which I opened was not worth mentioning.

我打开的路径，不值一提。