查询词典 sand-dune

To solve effectively the problem of sand removing in low-pressure absorption well s,a drilling sand pump was developed.

为了有效解决低压漏失井的井下清砂问题，研究开发了一种具有钻进功能的捞砂泵。

In addition, in order to avoid formation contamination by sand cleaning fluid, a special sand pump has been developed, which is easy to operate, uses less equipment, and is low cost and highly efficient .

另外，为防止冲砂液对地层造成污染，研究了专用抽砂泵，其现场应用操作简单、使用设备少，是一种低成本、高效率的清砂方法。

Some pumps also increase the number of auxiliary components, such as blowing sand from top to bottom cups, functional joints, the purpose is to further prevent any sand in the pump tube between the deposition.

有些泵还增加一些辅助部件，如上下刮砂杯、功能接头等，目的也是入一步防止砂在泵筒之间的沉积。

To solve the problem of pump sand sticking in Wennan Oilfield, a high-efficiency anti-sand and anti-gas string is developed.

为解决文南油田高气液比井出砂易造成卡泵的问题，研制了高效防气防砂一体化管柱。

Here, a special rack is designed, together with the complete range of equipment including air pump、sand storage tanks、rubber pipes of high pressure etc., the operation of sand-blasting is achieved.

针对机器人喷砂作业的要求，本文设计了专门的喷砂架，与空气压缩机、储砂筒、喷砂高压胶管等设备配套，实现了机器人的自动喷砂作业。

Some pumps also increase the number of auxiliary components, such as blowing sand from top to bottom cups, functional joints, the purpose is to further prevent any sand in the pump tube between the deposition.

有些泵还增长一些匡助部件，如上下刮砂杯、功能接头等，目的也是进一步防止砂在泵筒之间的淤积。

6 J;|# U2 F1 K Tik,"this one is Greater Sand Plover and this one is Lesser Sand Plover"{Tik can identify each bird right away now, much improved from last trip that he saw all are the same}7 i3 m k8 p a8 f3 m

图16：Tik：&这只是沙丘大鸻，另一只是沙丘小鸻&（现在Tik能够区别每只鸟了，和上次旅程这些鸟在他眼里全是一样相比，进步很多

This paper introduced to found a strength formula of the pit sand concrete depend upon the statistical principle,as well as the selected table of the sand ratio and water content.

本文作者介绍了如何利用统计学原理建立山砂砼强度公式、合理砂率选用表及用水量选用表，并说明了如何利用这几项技术指标进行配合比设计。

Aiming at the reservoir characteristics and serious sand production of the area,the precision micro-pore compound sand control screen pipe was used in the well completion,and good results were obtained.

针对该区块油藏特点和出砂严重的情况，通过室内分析、优选，在该区块几口水平井现场实施了精密微孔复合防砂筛管完井工艺技术，取得较好效果。

Installation technology and application of the long-distance grp sand pipe;2. drainage pipe and field test of GRP sand pipe construction technology, we draw the conclusion that GRP pipe is applicable for drainage pipe of port engineering.

通过对玻璃钢夹砂管与钢筋混凝土排水管的综合性能比较及对玻璃钢夹砂管施工工艺的现场测试，得出&玻璃钢夹砂管完全适用于港口工程的排水管道&的结论。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。