腐蚀

The resultant etched film showed a completely unetched area of copper where the original Etch-resist ink (1) print had previously been.

由此产生蚀刻的影片中，铜完全未腐蚀× 100范围，有关的原始腐蚀，抗油墨（1）印刷以前。

Analytical formulae are presented for the first time to describe the shift in the resonance wavelength of LPG in response to etching of the fiber cladding or a change in the external refractive index. The accuracy of the formula is confirmed by comparision with numerical simulations and experimental results. We demonstrated that the resonance wavelengths of an etched LPG are more sensitive refractive index than those of an unetched grating. The bending properties of long period fiber grating written in different type fiber are studied experimentally. The transmission peaks and the central wavelength of LPG change with the bending of the fiber. A new peak appears at the shorter wavelength when the fiber is being bent. The changes of the peaks are different for different photosensitive fiber. Those properties have broad application foreground in fiber sensors and tunable filters.

分别从理论和实验上对长周期光栅的折射率特性以及光纤包层半径对长周期光栅特性的影响进行了研究，首次给出了描述光纤包层半径腐蚀和外界折射率改变与长周期光栅共振波长关系的理论表达式，实验与理论和数据模拟的结果很好符合，利用腐蚀光纤包层的方法可以有效地提高LPG的折射率灵敏度；对不同光纤中写入的长周期光栅的弯曲特性进行了实验研究，LPG的透射峰形状及其中心波长随光纤弯曲而发生变化，并且随着弯曲将在短波方向出现新的透射峰，其透射峰的变化规律因所用光敏光纤的不同而不同，这一特性在光纤传感和可调谐滤波器方面有重要的应用前景。

Two kinds of silicon samples with distinct surface treatment, i. e., one surface was chemically etched and the other was unetched, were used to investigate the characteristics of leakage current and surface flashover of semiconductor under impulse voltage in vacuum. The experimental results showed that the surface conditions of samples affected these characteristics greatly. Before flashover, the Ohmic current was observed for unetched samples and the space charge limited current for etched samples, respectively. Meanwhile both samples showed quite different flashover tracks, and the surface-etched samples displayed a much higher onset voltage of flashover.

对采用和未采用表面化学腐蚀处理的半导体硅在冲击电压下的实验表明（参见 Zhang et al ， Applied Physics Letters， 2002），试品的表面状况对其泄漏电流和沿面闪络特性有着很大的影响：在沿面闪络之前，未经处理试品的泄漏电流表现为 Ohm 性电流，而表面处理过的试品表现为空间电荷限制电流特性；同时两类试品表面的闪络通道也表现出不同的特征，而采用表面化学腐蚀处理可以明显提高其沿面闪络电压。

Boiler——a subcritical uniflow boiler of 1000t/h steam at MCR, two-furnace,"Л"mold arrangement in a power plant in which the severely high temperature corrosions was existed, was studied in this thesis.

针对目前双炉膛锅炉存在的水冷壁烟气侧高温腐蚀爆管现象，结合本课题的工程背景，以某发电厂高温腐蚀最为严重的7号锅炉——1000t/h亚临界双炉膛、。。。

Wear experimental results showed that the wear rate of Ta+C-implanted steelwas increased and the friction coefficient dropped significantly compared with that of unimplanted H13 steel.

但当模具温度超过400 ℃时，工件铝材表面就会形成坚硬的Al2O3，而模具氮化表面将形成疏松而容易发生点腐蚀的氧化铁，从而导致模具在预热阶段就开始腐蚀，加上Al2O3引起的严重磨损，模具承载表面会过早和突然破损。

The chemical corrosive wear mechanism of electroless Ni-P coating under unlubricated wear was studied by test and theory and the possibility of as an anti-chemical corrosive wear coating on drill pipe was probed into.

从实验和理论两方面研究了化学镀Ni-P合金在无润滑磨损条件下的化学腐蚀磨损机理，探讨了化学镀Ni-P合金作为钻杆耐腐蚀磨损功能性镀层的可行性。

Pit corrosion is a main kind of localized corrosion. The process of forming pit corrosion includes three stages-formation of pit source, development of pit cave and forming occluded corrosion cell. Molybdate series inhibitors can be inhibitive, for it can control three stages of pit development. First, there is apparent synergistic effect between molybdate and phosphate, which can suppress formation of pit source. Second, there is apparent passivation of molybdate inhibitor according to electrochemistry analysis, which let oxidation film in unoccluded cave repassivate.

首先，钼酸盐与磷酸盐或硅酸盐复配的缓蚀剂具有较理想的缓蚀性能，并且有明显的协同作用，从而能抑制部分点蚀核的产生；其次，钼酸盐复配缓蚀剂的使用，从电化学的角度分析，具有明显的钝化性能，且钝化区间较宽、维钝电流密度较小，从而能使未封闭的蚀孔或点蚀核附近的氧化膜再钝化，得到有效的修复；最后，对于还有部分蚀孔发展成为闭塞腐蚀电池的情况，钼酸盐、磷酸盐能进入蚀孔内部并且在酸性条件下生成铁钼磷酸盐，从而有效地减缓了点蚀的恶化，抑制了腐蚀的发展。

The paper introduce fundamental theory and viewpoint on corrosion of iron and steel and zink coating, expounding loss and hazerd of corrosion, first.

本文首先介绍了钢铁腐蚀及镀锌层的基本理论与观点，阐述了腐蚀的损失及危害。

Calculation of metal corrosion rates from polarisation data were taken with the aid of the kinetic equation of corrosion system.

由极化数据分析计算金属的腐蚀速度是通过解析腐蚀体系的动力学方程式得到的。

Because fully avoiding of environmental erosion is difficult, the research on the corrosion damage of the super-duralium is still one of the affairs of the first magnitude.

由于环境腐蚀介质的侵蚀不可能完全避免，因此，有关超硬铝合金构件的腐蚀损伤，仍然是航空领域中十分重要的研究内容。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！