查询词典 headwater erosion

The concentration of Cosmogenic nuclides is not only constrained by production rates and exposure time, and also closely related to surface erosion. Furthermore, the concentration is affected by geomagnetic intensity, shielding, chemical weathering, and sample geometry as well. These factors affecting Cosmogenic nuclide concentration should be calibrated when surface exposure age is calculated.

地表物质中宇宙成因核素浓度除了受到核素生成速率和地表物质的暴露时间制约外，还与地表侵蚀速率密切相关，此外，地磁场强度、遮蔽、化学风化及样品的几何位置等也会对核素浓度产生一定影响，在求算样品的地表暴露年代时，应对这些因素进行相应的校正。

This work furnishes a fresh basis for further study of soil erosion and crustal movement.

该工作可为进一步研究水土流失及地壳运动提供依据。

Compared to the control Cynodon dactylon, the two native petrophile plants had higher soil erosion resistance index.

两种岩生植物均比狗牙根土壤有机质含量和抗蚀指数高。

Numerical experimental results showed that the perimeter air deflectable deposited burner could ensure the flame stability to satisfy combustion requirements under low load and can prevent spout fire carrying, low concentration of particle matters around the water-wall ensures the water-wall to be in oxidation atmosphere to solve problems of high temperature erosion and slagging, and particle matters separated from main spray caused by deflectable deposited perimeter air plays a significant role in low NO combustion control.

数值试验结果表明，偏置周界风燃烧器在保证煤粉气流着火稳定性以满足低负荷燃烧要求的同时，具备较强的防止喷口带火能力；炉内水冷壁附近颗粒物质量分数相对较小，从而能保证较高的氧化性氛围以解决水冷壁高温腐蚀、结渣等问题；偏置周界风所引起的炉内气固两相偏析在低NO燃烧控制方面具有重要意义。

A method for designing the perimeter air deflectable deposited combustor combining advantages and disadvantages of perimeter air, side air and blunt technique was proposed to solve problems of primary air fire carrying, high temperature erosion, slagging and low load flame instability in the large scale power plant boiler.

针对大型电站锅炉存在一次风喷口带火、高温腐蚀、水冷壁结渣、要求低负荷稳燃等问题，结合周界风、侧边风、钝体技术在不同方面的优缺点，提出了偏置周界风燃烧器设计方法。

The process and solution of degrease, alkali erosion, brightening pretreatment and pre-electroplating were introduced.

介绍了铝及其合金制件的脱脂、碱蚀、出光及预镀等预处理工艺和配方，探讨了浸锌-镍合金溶液的配制、温度及时间对镀层性能的影响。

This erosion, coupled with a seven-year drought that began in 19 31 , turned once fertile grasslands into a desertlike region known as the Dust Bowl.

这侵蚀，再加上7年的干旱， 19月31日开始，把肥沃的草原一旦进入desertlike区域称为沙尘暴。

The combination detection of three antibodies can improve the specificity for the diagnosis and is helpful to the early diagnosis of RA. The bone erosion is more severe in the patients with detectible two positive antibodies.

三种抗体联合检测可提高对RA诊断特异性及诊断率；两种以上抗体阳性RA患者，骨破坏更严重。

Detrital sedimentation is the direct record in basin for mountain uplift and erosion. The analysis of detrital minerals, including heavy minerals, is a key means for basin-mountain coupling studies.

碎屑沉积是山脉隆升和盆地沉积的直接记录，包括碎屑重矿物研究在内的碎屑沉积物的分析是开展盆山耦合研究的必要手段。

The present production crafts of potassium dihydrogen phosphate are always expensive, and usually cause heavy erosion.

目前，磷酸二氢钾的生产工艺较多，但普遍存在投资大、设备腐蚀严重等缺点。

We got alerted a couple of times while we were down south that HETs were on the way to bring us back up north because things were going to go hot again, but it was just rumors.

南下的途中我们不只一次得到警告说重型装备运输车将拉着我们重新北上，因为局势正在变得重新紧张起来，但这只是谣传。

It's the one where they find the ghost in the salt mine.

这一集是演他们在盐矿找到鬼