an experimental study of rats' nephrotoxicity caused by cadmium oxide dust

study on the preparation and the properties of cadmium oxide coating through sol-gel

溶胶-凝胶制备氧化镉薄膜及其性质研究

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optical constants and dielectric constants of normal cesium oxide thin films are related to wavelength of incident light and cesium impurity contained.

正常氧化铯薄膜的光学常数和介电常数随铯杂质含量和入射光波长有关。

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optical properties and dielectric constants of cesium oxide thin films

氧化铯薄膜的光学特性和介电常数

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according to the fission track age results of zircon, the cooling rate and denudation rate from 16.2 ma b.p., 12.963 ℃/ ma and 0.370 mm/ a is less than that calculated with apatite.

用锆石裂变径迹年龄来计算知，研究区内花岗岩16.2Ma以来的冷却速率和剥蚀速率分别为12.963℃/Ma和0.370mm/a，冷却速率和剥蚀速率均小于用磷灰石计算的结果。

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the correspondence of pollen influx changes with oxygen isotope stages represents many times of glacial-interglacial gyration, indicating that many times of rise and fall of the sea level of south china sea occurred after 2.6 ma b.p.

2.6MaB.P.以来，各类型孢粉沉积率变化与深海氧同位素分期相对应，代表了多次冰期-间冰期旋回。该结果表明南海海平面曾有多次上升和下降。

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the results show that the three curves are very similar in their trend, demonstrating the global change in the recent 4000 years. the most favorable period was between 1850a b.p. and 1150 a b.p.

结果表明，4000aB.P.以来三者的历史变化趋势是明显一致的，1850～1150aB.P.是生物活动的最宜期，这是全球环境变化在不同地点、不同类型沉积物中的表现。

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as to the tectonic types, the detachment fault with low angle was developed in the early pleistocene and the normal fault with high angle only after the mid-pleistocene ( 0.8 ma b.p.)

在构造形式上，早更新世时期发育低倾角拆离断层；中更新世（0.8Ma）以来，以高角度正断层活动为主。

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the results of lead isotope analysis indicate that the materials of the bayan obo group originated at 1314 ma b. p. and that the mineralization occurred at 6650 ma b.p.

铅同位素分析结果表明，白云鄂博群的物质来源始于1310Ma，矿化时间为665Ma。

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as a comparison, a porcelain sample with underglaze blue in yuan dynasty was dated too, and its tl age is 620 ± 140 b.p..

为了便于比较，同时测定了一件元代青花瓷片，它的热释光年代为距今620±140a。

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the formation of the estuary can be divided into fourstages: ( 1) last glaciation ( 2000-15000a b.p.)

据沉积作用和沉积相组合，钱塘江河口湾的形成及其发育可以分为四个阶段：（1）末次冰期（20000－15000aB，R）&下切河谷形成；

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because of the fluctuation and change of the holocene climate the four sheet rainwash erosional-depositional phases happened approximately in 11500-11000a b.p.

由于全新世气候的波动变化，以及人类活动的影响，运城盆地洪积扇地表出现过4个比较明显的面状流水侵蚀-堆积作用阶段，时间分别在11500-11000aB.P。

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after24ma b.p., with the stress field of the sinistral rotation and compressive shearing, formed the reverse structure in the northwestern basin.

之后在左旋压扭应力场作用下，形成了盆地西北部的反转构造；

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the heavy fraction ( b.p.> 350 ℃) of the oil obtained during rotary kiln pyrolysis of used tires is mainly composed of aromatic hydrocarbons.

轮胎热解油的重质馏分（b.p.＞350℃），主要是由芳烃组成。

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the moulins were formed in early quaternary, about 2~ 3 ma b.p., according to the study on climatic stratigraphy.

依据冰期气候地层法的分析、研究和对比，冰臼群大约形成于距今约2～3百万年的第四纪早期。

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during the geological period of loess plateau, the relatively intensive stages of soil erosion included five stages: early period ( 2.5~ 2.4 ma b.p.)

黄土高原地质时期土壤侵蚀的相对强烈期为：更新世早期（2.5～2.4MaB.P.）

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; primary river terraces formed since the late pleistocene, and diluvium-alluvial plains formed at about 0.037 ma b.p..

晚更新世以来主要河流阶地形成，其间在0.037Ma前后冲洪积平原形成。

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respectively, in sharp contrast with the main tectono thermal age ( 22.30 ± 1.8 ma b.p.) in their peripheral country rocks.

，与它周边的围岩经受的主要构造-热事件年龄（22.30±1.8Ma）截然不同。

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research on the fluctuations of closed-lake level since 17000a. b.p. in the middle kunlun mountains

中昆仑山区距今一万七千年以来湖面波动研究

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the second started in 10000a b.p. ( during the tianjin transgression).

第二次为10000aB.P.（天津海进期）。

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the bose lithic industry of 0.80 ma b.p. in guangxi show us the features of acheulean-like technology.

距今80万年以手斧为特色的广西百色石器工业，展示了与西方阿舍利文化相似的技术面貌。

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