The method of design and the damping valve structure can be a useful guide in the design of hydro pneumatic suspension, especially in heavy duty vehicle design.

提供的设计方法和结构方案可以作为油气悬挂，特别是重型车辆油气悬挂阻尼阀设计的参考。

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This thesis take up with the research and improvement of the EQ3242G heavy duty vehicle powertrain mount system, which can offer kind of guidance and reference on relevant designing or improving.

该课题研究致力于EQ3242G重型车动力总成悬置系统的改进与研究，对相关重型车动力总成悬置系统的设计或改进具有一定的指导和借鉴意义。

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Pennwick's craftsmen, in fact, lovingly sculpted the vehicle, which is built on a new Club Car chassis and features a 48-volt charging system and heavy-duty fiberglass body.

实际上，Pennwick的技术人员精雕细琢出了这辆车，它在一辆新高尔夫球车底盘上建造，具有48v充电系统和高强度玻璃纤维车身。

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Cummins, which employs 1, 200 people in Daventry, said worldwide demand for its heavy duty vehicle and marine engines had fallen and costs had to be cut.

BBC: Cummins engine firm cuts 98 jobs

The growth momentum of the heavy-duty truck sector has been declining since 2010 when China surpassed the million-vehicle mark in terms of heavy-duty truck sales.

FORBES: Making Sense Of China's Numbers

Unlike the light-duty vehicle market, most medium- and heavy-duty truck purchasers operate on slim profit margins where fuel costs are a major factor in their economic survival.

FORBES: Magazine Article