动力系统

In Chapter 4, the influence of pulse vaccination, time delays and vertical transmission on SEIR and SEIRS epidemic models is investigated.

第四章研究脉冲免疫接种、时滞及垂直传染对SEIR及SEIRS流行病动力系统的影响。

It's based on what we know about GM's design and manufacturing capabilities, current and near-ready platform and powertrain options, and marketing strategy.

这是基于我们所知道的通用汽车公司的设计和制造能力，目前和不久的平台和动力系统的选择和营销策略。

The effects of powertrain system on vehicle performance were analysed.

仿真分析了动力系统控制策略对整车性能的影响。

An integrated powertrain system means that the engine and the transmission should be treated as a whole.

综合动力系统是指发动机和传动部件为一个整体。

It helps to understand some evolvement processes of species, especially in dynamical system. For instance, studying the growth of cod fish simulation of wolf in Alaska, relationship between death age and relatives, evolvement. of species, evolvement process of competition, reproduce and natural selection of haploid, and one-species cellular automata model based on the Penna model was founded on a lattice of two dimensions.

利用Penna模型有助于理解一些生物演化过程，尤其是在种群动力系统中发挥了重要作用，如北极鳕鱼生长的研究，Alaska狼群模拟，近亲遗传死亡年龄之间的关系，种群的演变，单倍体种群的竞争，繁殖，自然选择等种群演变过程，二维格子上建立基于Penna模型的单物种元胞自动机模型是Penna模型与格子结合的早期文献。

"Kv ·= constant" principle, a sense of freedom laminated springs and valve switching power systems Plug Valves constitute △ P / S =εL S-feeling film work area,ε-spring Hook coefficient, L-valve stroke From this position of valve travel decisions every size of △ P value, if the valve travel position of the Kv and inversely proportional to the G = Kv · a constant value.

&Kv·=常数&原理，自由弹簧和感压膜构成阀门开关动力系统△P/S=εL S—感膜工作面积，ε—弹簧的胡克系数，L—阀行程由此可知阀门的每一个行程位置决定△P值的大小，如果阀行程位的Kv与成反比，则G=Kv·是恒定值。

As the "Hydraulic safety Closed Spring Loaded Low Lift Type-High Pressure Safety Valve valve," has two levels pressure relief function and pressure from low to high pressure limiting function; with limited pressure relief and anti-corrosion properties of good stability and reliability advantages of the patented product may greatly enhance and expand power systems and hydraulic equipment hydraulic mine support equipment, quality and performance.

由于&气动液压安全阀&具备二个级别卸压功能和从低到超高压力的限压功能；具备限压卸压稳定可靠和防腐性能好的优点，本专利产品可极大地提升和拓展液压动力系统和液压设备矿井支护设备的品质和性能。

Audi''s tiny car will go one step farther than any of the competition on engine design, however, with a choice of either a petrol or diesel version of a 600cc turbocharged two-cylinder expected to lie at its heart.

奥迪的小型车在动力系统设计方面将比竞争对手更先进，将提供排量为600毫升的涡轮增压汽油或柴油双缸引擎。

Under the hood, the Fiesta will likely feature a 1.6L four-cylinder with twin independent variable valve timing - which should allow it to offer above average fuel economy without the associated high expenses of a hybrid or diesel powertrain.

引擎盖下的Fiesta将可能采用1.6L四缸双独立可变气门正时-这应使它能够提供高于平均水平的燃油经济性没有相关的高费用或柴油的混合动力系统。

Two of our wheels are driven by rotating power system to made the cylinder rotate . The swinging rack is driven by a set of crankshaft swinging bar which is mounted on the frame and the swinging rack is supported on the frame.

在四个支撑滚轮中，其中两个传动轮由转动动力系统拖动使转筒产生转动；摆动架由一组曲柄摆杆机构来驱动，曲柄摆杆机构装在机架上，摆动架由轴承组件支撑在机架上。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。