多砾石的

You may want to go with a gravel or bark based path if your budget is small.

你要去了砾石或树皮的路径，如果你的预算不多。

I learned more about how the dredge barges scooped up and sifted the gravel, laying a corrugated berm of rocks and gravel behind.

我学到更多关于如何疏通驳船和仔细挖掘出的砂石，奠定了波纹护堤的岩石和砾石后面。

I find that more momentum helps me in the deep gravel areas.

我发现，更多的势头，让我深砾石地区。

But the strata with high ground water level are composed of alluvium clays、 silty clay、 gravels and crushed stone soils in Chengdu;And the shield will drive in the interzone with complicated geologic environment, especially in the strata contained more than 50 percent of grav

而成都地铁工程将主要穿越由冲积粘性土、粉土、砂砾和碎石类土组成的覆盖层，地下水位高，盾构将通过大量地质条件和环境条件均极为复杂的区间，特别是地层中还夹杂有大漂石、胶结砾石层、粉细砂透镜体，隧道围岩中直径大于5cm的砾石含量一般都在50%以上，最大的漂石直径达1m左右，且地面多为建筑物密集的繁华地区，施工难度大，国内尚无先例，在国外也无完全成熟的经验。

This pedestal rock began as a mass of pebbly sandstone.

这个基座岩石开始许多的多砾石的沙岩。

This paper also explores some guidelines after opening flood discharge gate of the water diversion pivot on low water.

并通过水工模型试验研究成果的分析，探讨了建在多沙河流卵砾石河床上的低水头引水枢纽闸后防冲设计的指导原则。

But the strata with high ground water level are composed of alluvium clays、 silty clay、 gravels and crushed stone soils in Chengdu;And the shield will drive in the interzone with complicated geologic environment, especially in the strata contained more than 50 percent of gravels which diameter is greater than 5cm, also contained big grain size gravels(the maximum diameter is about 1m)、 cement gravels and silty sand with lentoid mass;And on the ground there have many serried buildings in the prosperous zone.

而成都地铁工程将主要穿越由冲积粘性土、粉土、砂砾和碎石类土组成的覆盖层，地下水位高，盾构将通过大量地质条件和环境条件均极为复杂的区间，特别是地层中还夹杂有大漂石、胶结砾石层、粉细砂透镜体，隧道围岩中直径大于5cm的砾石含量一般都在50%以上，最大的漂石直径达1m左右，且地面多为建筑物密集的繁华地区，施工难度大，国内尚无先例，在国外也无完全成熟的经验。

The sedimentary process of debris flow which has fundamental dynamic mechanism of flowing and creeping formed mainly various flowing structures, such as half-ring flowline structure, divided-flowing structure, bag-shaped flowline structure, divided-flowing structure, bag-shaped flowine structure, loaded structure, multiple-layered structure, washed gravel bed and lenssoiled-bed structure.

以流动和蠕动为基本动力机制的泥石流堆积过程多形成各种定向的流动构造，例如，半环状流线构造，分流构造，袋状流线构造、载荷构造、多层状构造、冲刷砾石层和透镜状土层构造。

As to multi-layer reservoirs,each layer can be divided into three areas:area of gravel-packing,area of perforation and area of radial flow.Each area has its own governing equaiton and the solution is expressed by Green function.The well bore pressure and layer-rate is given through Green function in Laplace space.The pressure drop and skin factor isobtained also in each area.

根据多层砾石充填完井的渗流特点，将每个产层在径向上分成3个区域，即砾石充填区、射孔区、地层径向流区，每个区域有各自的渗流方程，对n层油藏有3n个渗流方程，将每个区域的方程用Green函数来表示，由各层的Green函数得到井筒混合压力、分层压力及分层产量在Laplace空间上的解，最后得到每层各区域的压力损失、表皮系数以及井底压力和分层产量与时间的变化关系。

The rocks and gravel provide more area for bacteria and protect the liner from UV rays.

岩石和砾石提供更多的面积为细菌和保护班轮从紫外线。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。