A 72 year-old man had chronic arachnoiditis after myelography with radioactive thorium dioxide many years ago.

Determination of thorium dioxide in thorium-tungsten alloys& Weight method

GB/T3312-1982钨钍合金中二氧化钍的测定重量法

Combined effects of thorium dioxide and thorium containing rare earth iron ore dust

呼吸道吸入天然钍（ThO2）和稀土矿尘联合作用的研究

Studies on the malignant transformation of golden hamster embryo cells induced in vitro by mixed mineral dust contained thorium dioxide

含二氧化钍的稀土混合矿尘体外诱发金黄地鼠胚胎细胞的恶性转化

The effect of the ultraviolet-visible light transmittance, doping amount of thorium dioxide and neodymium sesquioxide, pH value of the aqueous solution of sodium dodecyl benzenesulfonate and some other factors on the photodegradation rate were studied.

研究了复合膜的紫外-可见光透过性能和二氧化钍与三氧化二钕的掺杂量、十二烷基苯磺酸钠水溶液的pH值等因素对光解率的影响。

The determination process of Si in the tellurium dioxide by Silicon Molybdenum Blue Spectrophotometry is investigated.

研究二氧化碲中硅的硅钼蓝分光光度测定方法。

Raman Spectra Study of Tellurium Dioxide ( TeO_2) Crystal

二氧化碲（TeO2）晶体的Raman光谱研究

In this paper, The design experimental result and application of the developed acousto-optic tunable filter using tellurium dioxide crystal are described.

本文介绍了研制二氧化碲声光可调滤光器的设计和实验结果，并讨论了它的应用。

Study on the CMP Property of GaAs Wafer Using Nano Cerium Dioxide Abrasive

纳米CeO2磨料对GaAs晶片的CMP性能研究

Direct Determination of Cerium Dioxide Content

氧化铈含量的直接测定法

XPS Studies of New Oxygen Sensing Thin Films Made by Sputtered Cerium Dioxide

溅射二氧化铈氧敏薄膜的XPS研究

The Preparation of Cerium Dioxide by the Method of Selective Oxidation-Reduction

选择性氧化还原法制备二氧化铈

The adsorption and water gas shift reaction mechanism on reduced cerium dioxide

二氧化铈还原表面上水煤气变换反应机理

A cerium dioxide target was used for sputtering and films were deposited at various substrate temperature under different sputtering power.

溅射过程中，首先制备纯二氧化铈靶材，然后在不同的功率上调节不同的基片温度进行溅射。

Cerium dioxide has high refractive index and dielectric constant and ultraviolet absorption which may be useful for various optical and electronic applications.

二氧化铈具有高折射率、介电常数和紫外吸收率，因此它广泛地应用于各种光学和电子器件。

The mother rocks of copper deposit in Sanchakou are quartz diorite ( porphyrite) and quartz-mica-diorite-porphyrite of marginal facies from quartz-diorite and diorite rock body of middle Hercynian.

三岔口铜矿含矿主岩为海西中期石英闪长岩&闪长岩体边缘相石类闪长（玢）岩和英云闪长斑岩。

Quartz diorite-porphyrite body is large in scale, and closely related with Cu mineralization.

石英问长玢岩规模较大者，与铜矿化和其他矿化关系密切。

Mafic intrusive rocks in Wuqiagou area, eastern part of Ahai Orogenic belt, include diorite porphyrite, olivine gabbro cumulates, and hornblende gabbro cumulates.

阿尔泰造山带东段的乌恰沟地区发育大量镁铁质侵入岩（岩脉或小岩体），包括闪长玢岩和具堆积结构的角闪辉长岩和橄榄辉长岩。

The Tongshan copper molybdenum deposit is mainly of skarn type associated with quartz diorite porphyrite, whose K Ar isotope age is 117.0 × 10 6a.

后者为与燕山晚期石英闪长玢岩有关的矽卡岩型铜（钼）矿床，主岩体的K－Ar同位素年龄为117.0×106a。

The latter is composed of diorite, quartz diorite porphyrite, andesite, andesite basalt.

后者由闪长岩、石英闪长玢岩、安山岩、安山玄武岩组成。

If a dioptric lens is fitted, you would not have to wear eyeglasses when taking picture. Slip the lens in the grove of the viewfinder eyepiece.

如装上屈光镜头，拍照时您不能再戴着眼睛拍照，请插入屈光镜片于目镜槽内。