牵引拖拉机

Attached to a tractor, its wheels of flexible steel spokes spin over the fields like huge pinwheels, skimming over obstacles that would snap off the teeth of ordinary bar-rakes.

在拖拉机的牵引下，它带有可更换钢制辐条的轮子象巨大的转轮似地碾过田野，压过那些可以使普通耙子断齿的障碍。

Forming a corresponding complete set with other farm implements, it can take rotary tillage with sitting, plow and plough with sitting, plough with walking, disc plough, ditch, harvest, lawn repair, transport.

双力牌手扶拖拉机集牵引、驱动和固定动力输出为一体，操作轻便灵活，通过性能良好，适用于水田、旱地、果园和丘陵地带作业，与相应农机具配套可进行座乘旋耕、座乘犁耕、步犁耕、圆盘犁耕、开沟、收割、草坪修整、运输作业，还可作为抽水、喷灌、脱拉、磨粉、发电、饲料加工、破碎等固定动力输出。

It shall include various cars, motorcycles, agriculture transporters, tramcars, trolleybuses, special wheel machinery vehicles, walking tractors, deformed transport vehicles of walking tractors and the drawn semi-trailers and trailers.

包括各种汽车、摩托车、农用运输车、电车、电瓶车、轮式专用机械车、轮式拖拉机车组、手扶拖拉机车组、手扶拖拉机变形运输机以及被牵引的半挂车和全挂车等。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。