易蚀的

Recognized the regional geological history and the lack of external Sr sink epidote among the hydrothermal mineral assemblages, we refered that the Rb-Sr isoehron isotope date was the hydrothermal ore formation age.

因此本文通过Rb-Sr等时线所确定的250±20Ma同位素年龄具有地质意义，结合对区域地质演化史的基本认识及金矿石热液蚀变组合的研究(易捕获外来锶的绿帘石不发育)，该同位素年龄代表热液成矿年龄。

About 12,300 years ago, the water plunged over the edge of the Niagara Escarpment, a cliff at what is now Lewiston, New York. The force of the water wore away the rock layers, eventually reaching its present location.

大约在1.23万年以前，大量的水涌入到尼亚加拉悬崖的边缘地区，这座悬崖就座落于现在的纽约州刘易斯顿市，水流的强大力量冲蚀着岩石层，最终形成了今天的形状。

The protective layer remaining on the portion of the etched flowable insulation layer is removed.

去除留在被蚀刻的易流动绝缘层的该部分上的保护层。

A protective layer over the semiconductor substrate is formed to fill the portion of the etched flowable insulation layer.

在半导体衬底上形成保护层，以填充被蚀刻的易流动绝缘层的该部分。

The portion of the flowable insulation layer coming into contact with a gate forming region is etched so as to protrude the gate forming region in the active region.

蚀刻与栅极形成区域接触的易流动绝缘层的部分，以便在有源区域中突起栅极形成区域。

The diagenetic characteristics of Chang 6 sandstone of the Upper Triassic in Yanchi-Jiyuan area of the western Ordos Basin show that this set of sandstones are in the early A period of the late diagenetic stage at present and controlled by the acidic diagenetic environment, where the abundant diagenetic phenomena including widespread dissolution of feldspar and lithoclast, secondary enlargement of quartz and well-developed early chlorite film can be observed.

对鄂尔多斯盆地西部盐池-姬塬地区三叠系延长组长6砂岩成岩作用特征的研究表明，该套砂岩目前处于晚成岩阶段A期的早期，受酸性成岩环境控制。长石类易溶颗粒普遍发生溶蚀。石英次生加大发育。特别是早期形成的绿泥石粘土膜非常发育。

It is found that the structure of the ternary electroless Ni-W-P coating is greatly influenced by W content in the deposit. It is also found that the requisite content of phosphorus for amorphous Ni-W-P structure is less than that of Ni-P binary alloy coating, and the more tungsten exists, the less phosphorus is required. The hardness of the deposits will be enhanced as the deposit structures are changed from amorphous to mix-or nanocrystalline structures. The corrosion resistance of Ni-W-P ternary alloy is improved as W content increased, and the passivation of amorphous deposits is formed more easily than that of mix-structure and nanocrystalline deposits.

研究发现，化学镀Ni-W-P三元合金镀层的结构受镀层中钨含量的影响较大，非晶态Ni-W-P三元合金镀层所需磷含量较非晶态Ni-P二元镀层所需磷含量要低，并且钨含量越高，所需磷含量越少；镀层硬度随镀层结构从非晶态→混晶态→纳米晶态转变而增加；镀层的耐蚀性随镀层中钨含量增加而变好，且非晶态镀层较混晶态和纳米晶态镀层更易形成钝化区。

Aerators are widely used in flood discharge tunnel s and spillways to prevent the cavitation damage of the structures.

对高水头、大单宽流量、低佛氏数、小底坡长明流泄洪洞，在反弧段末端采用常规的掺气坎往往难以取得理想的掺气效果，同时，反弧段下游边墙易出现空蚀破坏。

Copper-base sprayed welding alloy is produced by adding B, Si, Ni, Mn, Al, Fe and P into the copper base, which has sound heat conduction or electricity conduction performance, being antirust, with low frictional coefficient and sound adhesive friction wear resistance, easy for cutting and being smooth.

铜基喷焊合金，是在铜基体中加入B、Si、Ni、Mn、Al、Fe、P等合金元素制成的，具有良好的导热，导电性和耐蚀性，摩擦系数低，耐粘着摩擦磨损性能优良，易切削，光洁度高。

This invented oil displacement agent for oil-containing industrial circulation water and oil-containing waste water application has benefits of small amount, good oil displacement effect, non-toxic and environmental friendly, and easy biological degradation.

本发明的复合驱油剂在含油工业循环冷却水系统和含油废水中应用时具有投加量少，驱油效果好，驱油剂无毒且对环境友好，易生物降解的特点，且驱油剂对水处理缓蚀、阻垢剂有良好的协同增效作用。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。