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There are 8.6%~10.91% foreign matter in the sphenes, in which radioactive elements of strontium, cesium and uranium range from 4.26% to 4.58%. The change of structural cell parameters of sphenes is still very little,Δa=-0.0009 nm~0.0041 nm,Δb=0.0018 nm~0.0004 nm,Δc=0.0002 nm~0.0048 nm,Δβ=-0.10°~0.09° with high crystallinity of 99.27%~96.46%. Though, the age of sphene from the Fenghuang Mountain is about 1000 Ma, and experienced 775 Ma~1758 Ma geological evolvement and alpha decay, its crystallinity only decreased 3%, and its crystal shape and structure are still fine, indicating that sphene is of good ability to solidify radioactive elements. Therefore, sphenes are ideal minerals for solidifying nucleus waste.

通过对北祁连牛心山变质杂岩体中榍石(775Ma)和山西凤凰山花岗岩中榍石(1758Ma)的XRD及EDS等测试与研究,结果表明:两地榍石的杂质元素质量分数高达8.6%~10.91%,放射性核素、铯和铀的质量分数达4.26%~4.58%;晶胞参数的变化极小,△a=-0.0009nm~0.0041nm、△b=0.0018nm~0.0004nm、△c=0.0002nm~-0.0048nm、△β=-0.10°~0.09°,结晶度仍高达99.27%~96.46%,榍石经过10×10^8a的地质作用,结晶度仅减少了3%,显示榍石固化放射性系列核素的能力较强,虽经历了约775Ma~1758Ma的复杂地质演化及其所含放射性核素的衰变作用,其晶体结构完好,稳定性极高,是值得期待的理想核废物固化矿物。

New type of strontium aluminate shone coating has excellent light stability, which can be used outdoors.

新型的铝酸类发光涂料其耐光性优良,可用于室外。

Strontium aluminate phosphors are a kind of photoluminescent materials with stable performance and high efficiency.

铝酸系磷光体是一种性能稳定,发光效率高的光致发光材料,在可见光显示方面有着广泛的应用前景。

In this paper, the preparation and electrical performance of SrTiO3 used for SOFC anode materials were investigated.

本文对掺杂钛酸新型SOFC阳极材料的制备和电学性能进行了研究,探讨了其作为新型阳极材料的可行性。

Seven individuals , however , yielded enamel oxygen and strontium ratios that are inconsistent with a Barbadian origin , which strongly suggests that we are dealing with first-generation captives who were brought to the island with the slave trade .

7个人,但是,产生珐琅质氧和的比率是不符合巴巴多斯出身,这有力地表明,我们正在处理的第一代谁俘虏被带到岛上的奴隶贸易。

Recent research advance in preparation of ultrafine barium carbonate and strontium carbonate is summarized.

综述了超细碳酸钡和碳酸制备方面的研究进展。

I have eight main products plant water barium hydroxide, a water barium hydroxide powder, a crystal water barium hydroxide, barium borate partial, thiourea, barium carbonate, barium chloride, barium nitrate, after I plant refined products up to no chlorine, no sodium, low Sr, low iron.

我厂主要产品有八水氢氧化钡、粉体一水氢氧化钡、晶体一水氢氧化钡、偏硼酸钡、硫脲、碳酸钡、氯化钡、硝酸钡等,经过我厂精制的产品可达无氯、无钠、低、极低铁。

After the examination of the underground hot water sample by the National Supervision and Examination Center, the hot spring is categorized to chlorid-saleratus hot spring, containing strontium, iodine, lithium, bromine, boracic acid, etc.

地下热水水样经国家监督检测中心检测属氯化物·重碳酸—钠温泉,含、碘、锂、溴、硼酸等。

The invention provides a UV below 200 nm lithography method utilizing mixed calcium strontium fluoride crystals.

本发明提供了波长在200纳米之下的UV平版印刷方法,它使用了混合的氟化钙晶体。

Each capful (6ml) will add about 0.6 ppm of Strontium to 25 gals(95l)of water.

每加1瓶盖(6ml),每25加仑(95L)水中浓度将增加约0.6ppm。

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I can still vividly recall the impressive scenes you gave. You were among my friends and relatives who accompanied me from my house to the seaport and when the porters were slow to show up, you obligingly carried my suitcase for me.

你对我的种种感人情意,使我记忆犹新,那天你随着我的亲友从家里送我上轮船,搬运工迟迟不来,你毅然替我提着皮箱上船。

St. Nicholas became the patron saint of Russia, where he was famous for his red cape, flowing white beard, and bishop's mitre.

圣尼古拉成了俄罗斯人的守护神,在那里,他以身披红斗篷,留着飘逸的白胡须,戴着主教法冠而闻名。

Long periods of seeming invincibility. Though some industries or lines of business exhibit characteristics that endow leaders with virtually insurmountable advantages, and that tend to establish Survival of the Fattest as almost a natural law, most do not. Thus, for every Inevitable, there are dozens of Impostors, companies now riding high but vulnerable to competitive attacks. Considering what it takes to be an Inevitable, Charlie and I recognize that we will never be able to come up with a Nifty Fifty or even a Twinkling Twenty. To the Inevitables in our portfolio, therefore, we add a few "Highly Probables."

在所属的产业都被赋予其无可取代的优势地位,大者恒存的自然定律似乎牢不可破,但实际结果却不然,也因此在找到真正的真命天子之前,旁边可能还有好几打假冒者,这些公司虽然曾经红极一时,但却完全经不起竞争的考验,换个角度来看,既然能够被称为永恒的持股,查理跟我早就有心理准备,其数量绝对不可能超过五十家或甚至是不到二十家,所以就我们的投资组合来说,除了几家真正够格的公司之外,还有另外几家则是属于极有可能的潜在候选人。