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The half life of xanthene derivatives in water is between 5 hours to 7 hours, and on the surface of silica TLC plates is between 1 hour to 2 hours.

呫吨类化合物的光降解规律为：在水溶液中的光降解是假一级动力学化学反应，半衰期在5小时到7小时之间，属于同一个数量级。

It is an important consideration in purification circuits that removal cadmium completely prior to cobalt cementation, because cadmium can inhibit basic zinc sulphate to adsorb on the surface of zinc dust.

镉可以起到阻止碱式硫酸锌或氢氧化锌吸附在锌粉表面的作用。欲加速钴的置换和提高置换效率，必须形成锌-钴合金或锌-镉合金。

It was recognized that a simple chromate treatment of galvanized products results in the production of a passive film on the surface of zinc coating which inhibits white rust formation.

热浸镀锌镀件上为了防止白锈，一般以铬酸盐处理在表面形成保护膜来抑制白锈的生成。

Tin compound was coated on the surface of the calcium zincate by chemical deposition.

采用化学沉积法在四边形锌酸钙表面包覆一层金属锡化合物。

The mechanism of permeation of hydrogen permeation barrier at 700*C on the surface of zirconium hydrogen is studied.

研究了氢渗透阻挡层在700℃的阻氢性能。

Significant loss of GEMs was not observed but strong growth activities, formation of biofilm and zoogloea on the surface of immobile particles were observed via scanning electron microscope. The mechanical stability of the particles remained unchanged after nearly two-month operation.

在整个反应过程中，没有出现大量工程菌流失的现象，同时在固定化颗粒的表面以及浅层均观察到了大量工程菌菌体，固定化颗粒的表面还出现了生物膜和菌胶团，反应结束时，颗粒形态完好，强度满足本工艺条件下长期使用的需求。

Having super thin high-transparence toughened glass layer or acryl protective layer on the surface of LCD panel for protection.

液晶屏表面安装有超薄高透光钢化玻璃防护层，保护液晶屏被人为损坏。

An AlTiN ceramic coating was deposited on the surface of biomedical Ti6Al4V alloy by High Ionic Pulse technology. The properties of biofriction and wear of AlTiN coating in simulated serum lubrication at 37℃ were investigated and compared with that of non-coating Ti6Al4V alloy.

采用高度离子化脉冲工艺在医用钛合金Ti6Al4V表面制备AlTiN涂层；在摩擦磨损试验机上测试了涂层在37℃的模拟人体生理血清液润滑条件下的摩擦磨损性能，并与之和未经涂层的Ti6Al4V合金作比较。

Increasing the degree of conversion from nitrile group to amidoxime group on the surface of PAN fiber caused not only higher Fe3+ content of Fe-AO-PAN, but also its stronger catalytic performanceon dye degradation in aqueous solution.

PAN纤维腈基转化率的提高不仅能够明显增加Fe-AOPAN表面结构中Fe3+含量，而且可显著促进其对染料氧化降解反应的催化作用。

Results Denatured necrosis occurred on the surface of hypothalamic periosteum with no cells and there was a large amount of starchy bodies and hydrops in foci with angiectasis of choroid plexus and necrosis and calcification in tunicaintima of vesicles,and mitochondria in the nerve synapse disappeared and part of anteroposterior membranes ...

结果 慢性SZ患者下丘脑部室管膜表面变性坏死、无细胞，病灶中有大量淀粉样小体和水肿，脉络丛血管扩张，管壁内膜有坏死和钙化；神经突触内大部分突触小泡和线粒体消失，部分前后膜模糊不清。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。