查询词典 headwater erosion

Either way, it is important to establish good ground cover to avoid the loss of soil through erosion .

不管采用哪种方式，建立良好的土地植被，避免由于冲蚀而造成的土壤流失十分重要。

Mild cervical erosion have little effect on the fetus can be post-natal treatment:(1) electric iron treatment (2) Cryosurgery (3) laser treatment (4) infrared coagulation treatment of 2, pregnant women, iodine deficiency can affect fetal development, neonatal severe cases of "cretinism", the best iodine supplement food for the seafood.

轻度宫颈糜烂对胎儿影响不大，可于产后进行治疗：(1)电熨治疗(2)冷冻治疗(3)激光治疗(4)红外线凝结治疗2、孕妇缺碘可影响胎儿的发育，严重者新生儿出现"克汀病"，最好的补充碘食品为海产品。

The slurry erosion studies were carried out at 60, the most critical angle of impingement for the velocities in the range of 15–20 m/s using mineral sand having a mean particle size of 225 m.

泥浆侵蚀进行了研究，在60 的最关键的角度撞击的速度范围15-20米/秒使用矿物砂具有意味着粒子尺寸为225 ？

The film, shot in 1984, recorded hillsides where crocidolite, commonly known as blue asbestos, had been exposed after erosion and landslips.

这部拍摄于1984年的影片记录了当地的山坡在经历了土壤流失和山体滑坡后，青石棉，又称蓝石棉暴露在外的景象。

One is that it will lead to increased corruption, cronyism and the erosion of managers' incentives to perform.

他们一 直认为，中国经济的日趋繁荣和城市中产阶级的发展壮大，最终必将产生政治改革压力，就像在韩国、台湾和东亚其它地方已经发生的那样。

Being controlled by the rheology of the lower crust, erosion may level off the topography, and can break the balance of kinetics and thermodynamics inside of the crust therefore rebuild the structure and component of the curst. the uplift process of the mountains is then enhanced; we believe that the rate of the exhumation is controlled by both the uplift of orogen and the outer spheres of the earth.

在下地壳物质层流变作用机制的调节下，地表剥蚀作用并不仅仅是传统意义上地表夷平的因素，它还能打破地壳动力学和热力学平衡，引起地壳内物质和结构的重置，进而促成山脉的加剧隆升；地表剥蚀作用的强度既受控于造山带的抬升，也受制于地球外圈层。

The mechanism of soil erosion at different degrees was expounded,which was caused by different cutting methods, skidding method s,and cutover land cleaning methods in forest operation techniques.

本文分析森林作业技术中不同采伐方式、集材方式和迹地清理方式造成的不同程度水土流失的机制，提出防止因森林作业而导致水土流失措施：合理选择采伐方式，避免大强度采伐，选择对土壤破坏小的集材方式，使剩余物对雨水保持截持作用的迹地清理方式。

Piercement of drilling pump cold cyclinder is a serious problem existed in field application.Piercement is caused by cavitation erosion.

钻井泵冷缸刺漏是钻井泵在现场使用中存在的一个较严重的问题。

So preventing cold cyclinder from piercement should start from preventing cold cyclinder from cavitation erosion.

刺漏是由气蚀引起的，因此预防冷缸刺漏应从预防冷缸气蚀入手。

Cavitation erosion is related to bubbles.Bubbles pop out from drilling fluid in vacuum conditiun and form air mass against cyclinder well.For low resistance to pressure,air mass happen explosion when compressed,making cyclinder wall cavitated.

气蚀发生的条件与气泡密切相关，气泡在真空时从钻井液中溢出形成气团，并紧靠缸壁；气团在压缩时因承压能力低而产生爆炸，从而引起缸壁产生气蚀作用。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。