沟的

A plow equipped with a double moldboard that turns up the soil on each side of the furrow, often having an attached drill for seed planting.

双壁开沟犁犁头后部有两块曲面铁板的犁，可翻开犁沟两边的泥土，常附有播种机注意，注意力集中

A plow equipped with a double moldboard that turns up the soil on each side of the furrow,often having an attached drill for seed planting.

双壁开沟犁犁头后部有两块曲面铁板的犁，可翻开犁沟两边的泥土，常附有播种机那个农民将牛缚在犁上，用刺棒驱赶它们。

A plow equipped with a double moldboard that turns up the soil on each side of the furrow ,often having an attached drill for seed planting.

双壁开沟犁犁头后部有两块曲面铁板的犁，可翻开犁沟两边的泥土，常附有播种机

The sedimentary model has been built in Majiagou Formation and the lithofacies paleogeography map has been plotted for each Member in Majiagou Formation.

并建立了马家沟组的沉积模式，绘制了马家沟组各个岩性段的岩相古地理平面图。

On the principle of the parallel four link rods machanism, using two group parallel and equal distance spring slices, by a series of mechanism links, the position changes of rods and measure head on two grooves were showed by measuring meter in order to measure the change amount of two groove distance on central spindle of spinning bearing .

本文运用了机械原理中平行四杆机构原理，采用两组平行等距弹簧片组，通过一系列结构连接，使杆、管臂测头在两沟道中的位置变化，由测量仪表显示出来，从而达到测量纺杯轴承心轴上两沟间距离的变化

In the Paper, through theoretical analysis of minimum allowance of that type bearing raceway , the determining method of raceway allowance is given.

本文通过对该类轴承沟道最小余量的理论分析，给出厂沟道余量的确定方法。

In order to resolve the part distortion problem of 16Mn scaleboard used in the sluiceway of No.

为解决 5 #、6#高炉冲渣沟原 16Mn衬板因冲蚀、腐蚀磨损严重，局部翘曲变形的问题，采用耐蚀性及耐磨性均较好的玄武岩铸石板作为冲渣沟内衬。

In this paper, a new REE tracer method was used to quantitatively distinguish sheet and rill erosion amount. The new REE tracer method should be useful to future studying of erosion processes on slope lands.

本研究为定量区分片蚀和细沟侵蚀量以及坡面侵蚀过程中片蚀向细沟侵的转变以细胞侵蚀发生、发育提供了新的思路和解决途径。

One Utah property owner with access to irrigation-only ditch water diverts it from a curbside ditch sluiceway to irrigate summer crops.

犹他州的一个能够访问灌溉业主只沟水转移，从路边沟泄水它灌溉的夏粮作物。

This article points out the rationality of the method of ir- rigation and possibility of developing new concepts and principles for storm and sanitary sewer design to promote the seperation of old combined swerage system.

本文指出了灌溉法的合理性和改革城市雨水排除方法与城市污水沟道设计原理可能有助于合流沟道的分流化，并提出了设想。

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。