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

1、

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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2、

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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3、

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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4、

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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5、

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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6、

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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7、

; 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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8、

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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9、

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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10、

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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11、

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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12、

bergeron, b.p. "using the web to improve health care." advance for health information executives.1997.

利用网络改善健康照护〉，健康资讯行政的建议1997。

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13、

1850 ± 150ma b.p.& an important period of transition in the evolution of the earth

距今1850±150Ma&地球发展演化的重要转折时期

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14、

the period of age of copper and stone both used includes: hongshan culture ( 6500-5000 b.p.)

铜石并用时代考古学文化有红山文化（6500&5000B.P.）

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15、

yesterday i asked some questions through the hot line about buying, installing and using a digital b.p.

昨天我打热线询问了一些关于如何购买、安装、使用数字传呼机的问题。

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16、

in the early period of the holocene ( 11500-8500 a b.p.)

全新世早期（11500～8500aB.P.）

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17、

a climatic decline took place during the late holocene from 3100 a b.p.

全新世晚期从3100aB.P。

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18、

geomorphic transformational event around 1.2 ma b.p. in the southern shanxi province

山西南部1.2MaB.P.的地貌转型事件

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19、

, late period ( 0.10~ 0.07 ma b.p.)

更新世晚期（0.10～0.07MaB.P.）

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20、

the upper part ( 3.4~ 2.6 ma b.p.)

上部（3.4～2.6MaB.P.）

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