不固定的

Meanwhile, the concentration of Pb,Zn and other heavy metals is rather high in the oxidation zone and decreasesdownward to levels that are unbelievably low for Pb-Zn mine tailings. Theseobservations suggest that heavy metals should be re-immobilized by secondaryminerals, rather than primary minerals, in the oxidation zone, and could be leachedout from suboxic environment due to low rate oxidative dissolution which preventsthe precipitation of secondary minerals in significant amount. Thus, cover scenarioswhich establish a suboxic environment beneath the cover layer might not always beeffective in preventing heavy metal release from mine tailings.Sequential extraction studies indicate that, in addition to heavy metal leaching,oxidation of the mine tailings increased the mobility of residual Zn, and Cu, while Pb remains immobile due to the formation of anglesite (PbSO4). Using the seven-step extraction technique developed by Dold (J. Geochem. Explor., 2003, 80: 55-68), galena dissolves in significant amount at step 2 most probably due to the strong complexing of Pb2+ by acetate, while other metal sulfides dissolve at step 6, which suggest that this extraction technique could not be used to evaluate the mobility of lead in natural environment

重金属含量均低于新鲜尾矿，但以硬化层中的含量最高(Pb、Zn含量分别为0.47%和0.93%)，往下大幅度降低，表明尾矿风化过程中形成的次生矿物对Pb、Zn等重金属元素有较强的固定作用，而次氧化带的淋溶作用造成了金属元素的大量流失；(4)与新鲜尾矿相比，硬化层中铅的可迁移性大大降低，硬化层之下尾矿样品中铅的可迁移性也不同程度降低，这是由于硫化物氧化产生的硫酸根与尾矿中的铅反应形成铅矾(PbSO_4)的缘故；(5)氧化作用使尾矿中的zn、Cu等重金属的可迁移性不同程度地增大，其中对锌的可迁移性影响最大，铜的可迁移性与铁比较相似，铅则容易与硫化物氧化形成的SO_4~(2-)反应形成铅矾(PbSO_4)；(6)为了减少尾矿污染和修复矿山环境，人们提出了各种不同的尾矿覆盖方案，本文的研究结果表明，这些方法不一定能够有效地阻滞污染元素的迁移。

There are series of papers studying the solvability of an incompressible, viscous, instationary fluid contained in a domian bounded entirely by a free surface. In 1977, Solonnikov proved its local solvability in a Holder space for any initial date but without surface tension. In 1984, he considered the same problem in a Sobolev space with surface tension being taken into account. In I992, Mogilevskii and Solonnikov treated the same problem in a Holder space, where the coefficient of surface tension is not a constant. There are also short-time existence results for the solvability of an incompressible, vicous, unsteady fluid bounded above by a free surface and below by a fixed bottom which approach horizontal planes at infinity. In 1981, Beale proved its local solvability in a Sobolev space for any initial date but without surface tension. In 1983, Allain were concerned with the same problem in R〓 with surface tension but under the assumption that the initial fluid domain was near a horizontal strip. In 1987, he obtained the same result without the preceding assumption. In 1996, Tani solved the same problem in R with surface tension. For the solvability of an incompressible viscous instationary fluid in Ω R bounded inside by a free surface S and outside by a rotating boundary S, in 1995 Ciuperca proved its local existence in a Sobolev space for any initial date but without surface tension. In this paper, we consider the same problem with surface tension.

对于边界完全是由自由边界组成的有界区域中粘性不可压流体的非定常运动问题，Solonnikcv于1977年在忽略表面张力情况下证明了初值问题小时间解在Holder空间的存在性，于1984年在有表面张力情况下证明了初值问题问题小时间解在Sobolev空间的存在性，Mogilevskii和Solonnikov于1992年在表面张力系数可以不是常数情况下证明了初值问题小时间解在Holder空间的存在性；对于上面是自由边界、下面是固定边界且两边界在无限处趋于水平的无限区域中粘性不可压流体的非定常运动问题，Beale于1981年在忽略表面张力情况下证明了初值问题小时间解在Sobolev空间的存在性，Allain于1983年在有表面张力情况下证明了R中初值问题小时间解在Sobolev空间的存在性，但其中假定初始区域近似是个水平条，他于1987年去掉了这个假定得到同样的结果，Tani于1996年在有表面张力情况下证明了R中初值问题小时间解在Sobolev空间的存在性；对于R中内面是自由边界、外面是旋转边界S的有界区域中粘性不可压流体的非定常运动问题，Ciuperca于1995年在忽略表面张力情况下证明了初值问题小时间解在Sobolev空间的存在性，本文考虑了在有表面张力情况下初值问题可解性问题。

The "pecheis"were the arms of the lyre that entered the soundbox from the front. The "zugon" or crossbar was notched across the upper ends of the arms to which the seven strings of sheepgut were attached. The chelys-lyra had the same kollopes and plektron as the kithara, but the plektron cord was attached to the base of the outer arms more often than to the base of the soundbox.

以下内容引用自Diane Touliatos-Miliotis的文献：Chelys-lyre的其他部件包括：一个donax，这可能是安置在两角之间为之起桥梁和支架作用的芦苇杆；pecheis，里拉琴从外部置入共鸣箱的部分；zugon或者crossbar，被刻上刻痕并架在两角上部的末端，里拉琴像萨基拉琴一样也有kollopes和琴拨，但固定琴拨的绳索常常栓在角外侧的底部而不是共鸣箱的底部。

" Mark took a deep breath and employed the large-eyed look that made Jason so furious because he couldn't copy it--this expression of mixed earnestness and utter innocence had saved him for the first time when he'd disassembled two toasters in three days at age nine in a misguided attempt to "fix them.

&因为他不可以复印它，所以马克作了深的呼吸而且雇用了使杰生如此狂怒的大-眼的神情--当他有解开了在在一种被错误引导的尝试九岁的三天二个烤箱的时候，混合的认真和全然的无罪这表达第一次已经节省他到&固定他们。

AbstractObjectives1 Correlate bone mineral densityto vertebral compressive strengths.2 Consummate the technique for percutaneous polymethylmethacrylate vertebroplasty and observe the pattern of PMMA imaging distribution.3 Determine the strength and stiffness of osteoporotic with or without vertebroplasty with PMMA bone cement.4 Correlation of BMD,insertion torque and pull-out strengths of pedicle screws.5 Ascertain whether augmentation with PMMA bone cement can enhance pedicle screw fixation in the osteoporotic spine.6 Ascertain whether augmentation pedicle screw fixation with PMMA bone cement can enhance the stability of unstable thoracolurner burst fractures of osteoporotic spine.

目 的1、测试椎体压缩强度，分析强度与骨矿物质密度（bone mineral density，BMD）的相关关系。2、观察经皮椎体成形术后聚甲基丙烯酸甲脂（polymethylme- thacrylate，PMMA）骨水泥在椎体内的形态学分布及影像学表现。3、比较PMMA骨水泥骨质疏松椎体成形术前/后椎体最大抗压力和压缩刚度的变化。4、分析椎体BMD、螺钉最大旅入力矩和最大拔出力三者之间的关系。5、分析PMMA骨水泥强化骨质疏松椎弓根螺钉后的螺钉的最大轴向拔出力和拔出刚度的变化。6、评价PMMA骨水泥强化骨质疏松椎弓根螺钉脊柱内固定对不稳定型胸腰椎损伤的即刻稳定性和反复载荷后的稳定性。

The latedischarges decreased from 9.29 ± 0.97 to 6.71 ± 0.68 with the A-fiberconditioning stimulus increasing from 1 to 5 (n〓8, P〓0. 05).(7) The intervalbetween the conditioning stimulus and test stimulus (C-T interval) wasincreasing, the inhibition tended to plateau off. At shorter time intervalsthe inhibition became more effective. When C-T interval was limited in 50ms,the inhibitory effects was the strongest, here, the late discharges reducedfrom 12.57±1.21to 2.29±0.42 (n=11, P＜0. 01).(8) Behavior research showedthat the rat model of snake venom exhibited neuropathic pain with heathyperalgesia, cold and mechanical allodynia, which corresponding to the acuteelectrophysiological findings.

此时轻刷WDR神经元的感受野不能引起其活动改变，但伤害性齿镊夹捏仍可引起WDR神经元放电增多；〓5〓晚成分放电的潜伏期缩短，即宁静期的时程变短，由给蛇毒前的118.83〓3.67ms降至50.72〓1.36ms〓n〓32，P〓0.01〓；〓6〓在正常动物，如果预先给予只激活A纤维的弱条件电刺激〓mA，100μs〓可抑制随后的伤害性检验刺激所诱发的WDR神经元的晚成分放电，当条件刺激个数从1增加至5时，每次伤害性检验刺激所诱发的晚成分放电数从9.29〓0.97个降至6.71〓0.68个〓n〓8，P〓0.05〓；〓7〓固定条件刺激数为1个，当条件刺激与检验刺激之间的间隔增大时，A纤维条件刺激对WDR神经元晚成分放电的抑制作用逐渐减弱，当条件刺激与检验刺激之间的间隔在50 ms以内时，抑制效应最为显著，此时，晚成分放电数由正常时的12.57〓1.21个降至2.29〓0.42个〓n〓11，P〓0.01〓；〓8〓与急性研究中的WDR神经元电活动的变化结果相匹配，利用蛇毒制备的大鼠模型在行为学上表现为热痛觉过敏、冷觉的痛性感觉异常及机械痛觉过敏等慢性痛症状。

At the same time, most WDR neurons failedto respond to the light brush applied to the receptive fields, but they couldbe intensively excited by the noxious pinch.(5) The latency of the latedischarges was shortened from 118.83 ± 3.67ms to 50.72 ± 1.36ms (n〓32, P〓0. 01).(6) Preceding graded number of A〓fiber conditioning inputs (〓mA, 100 μs) delayed the C-activity evoked by the following nociceptive teststimulus activating both A- and C-fiber applied to the sciatic nerve. The latedischarges decreased from 9.29 ± 0.97 to 6.71 ± 0.68 with the A-fiberconditioning stimulus increasing from 1 to 5 (n〓8, P〓0. 05).(7) The intervalbetween the conditioning stimulus and test stimulus (C-T interval) wasincreasing, the inhibition tended to plateau off. At shorter time intervalsthe inhibition became more effective. When C-T interval was limited in 50ms,the inhibitory effects was the strongest, here, the late discharges reducedfrom 12.57±1.21to 2.29±0.42 (n=11, P＜0. 01).(8) Behavior research showedthat the rat model of snake venom exhibited neuropathic pain with heathyperalgesia, cold and mechanical allodynia, which corresponding to the acuteelectrophysiological findings.

此时轻刷WDR神经元的感受野不能引起其活动改变，但伤害性齿镊夹捏仍可引起WDR神经元放电增多；〓5〓晚成分放电的潜伏期缩短，即宁静期的时程变短，由给蛇毒前的118.83〓3.67ms降至50.72〓1.36ms〓n〓32，P〓0.01〓；〓6〓在正常动物，如果预先给予只激活A纤维的弱条件电刺激〓mA，100μs〓可抑制随后的伤害性检验刺激所诱发的WDR神经元的晚成分放电，当条件刺激个数从1增加至5时，每次伤害性检验刺激所诱发的晚成分放电数从9.29〓0.97个降至6.71〓0.68个〓n〓8，P〓0.05〓；〓7〓固定条件刺激数为1个，当条件刺激与检验刺激之间的间隔增大时，A纤维条件刺激对WDR神经元晚成分放电的抑制作用逐渐减弱，当条件刺激与检验刺激之间的间隔在50 ms以内时，抑制效应最为显著，此时，晚成分放电数由正常时的12.57〓1.21个降至2.29〓0.42个〓n〓11，P〓0.01〓；〓8〓与急性研究中的WDR神经元电活动的变化结果相匹配，利用蛇毒制备的大鼠模型在行为学上表现为热痛觉过敏、冷觉的痛性感觉异常及机械痛觉过敏等慢性痛症状。

A comprehensive inspection of the first day, moving the next day surgery, general anesthesia dynamic operation, looking at such a small child lying on the bed operation, when the heart is ~~~ surgery about 35 minutes, cut small, as big as a grain of rice operation is the lower body to fight out of plaster, when the hand is the two legs on both sides of the body with cast immobilization with a plaster after 3 months can be adjusted for an iron rack, shelf five clasps, released a month and a half a deduction, your baby is in mid-July to win the shelves, from surgery to拿架子basically a year's time, during the baby is not affected by the crime to say the!!!

第一天全面检查，第二天动的手术，全身麻醉动的手术，看着这么小的宝宝躺在手术床上，当时那个心情简直是～～～手术大约35分钟，刀口很小，就象大米粒一样，手术出来是下半身打的石膏，当时就是两条腿掰到身体两侧用石膏固定，带了3个月石膏后换的一种可以调节的铁架子，架子上是五个扣，一个半月放一扣，宝宝是7月中旬拿下来的架子，从动手术到拿架子，基本上要一年的时间，期间宝宝受的罪就不要说了！！！

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。