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Unstable solution that may exist in SIRT or SART which converges to the Solution of a least-square problem is avoided.

阻尼代数重建技术，这种方法收敛于阻尼最小二乘解，因而克服了收敛于最小二乘问题的SIRT、SART法可能出现的不稳定解。

The inversion approach has advantagesof ensur ing reliability of pseudo-impulse response , reducing non-uniqueness solution of unstable equation and evaluating uniqueness of solution.

该联合反演方法确保了伪脉冲响应的可靠性，缩小了解的非唯一性，并能评价解的唯一性程度。

Then we prove that if the initial data enter into the unstable set, then the solution of the aforementioned Cauchy problem blows up in finite time, and if the initial data enter into the stable set, then the solution of the aforementioned Cauchy problem globally exists.

其次证明了如果初值进入不稳定集，该柯西问题的解在有限时间内爆破；如果初值进入稳定集，该柯西问题的整体解存在。

Uranium oxide was soluble in Na2CO3 solution and basically insoluble in NaH2PO4-Na2HPO4 solution.

铀氧化物在Na2CO3溶液中易溶，在NaH2PO4-Na2HPO4体系中几乎不溶。

Uranium oxide is soluble in acidic HAc-NaAc,alkaline NH4OH-NH4Cl buffer systems and Na2CO3 solution,but insoluble in NaH2PO4-Na2HPO4 solution.

铀氧化物易溶于酸性HAc-NaAc体系、碱性NH4OH-NH4Cl体系和Na2CO3溶液，不溶于NaH2PO4-Na2HPO4体系。

The preparation of ammonium uranyl gadolinium carbonate using (NH4)2CO3 solution from the mixed solution of UO2(NO3)2 and Gd(NO3)3 by means of co-precipitation was investigated.

本工作试验研究以碳酸铵溶液作沉淀剂从硝酸铀酰和硝酸钆的混合溶液中共沉淀AUGdC的方法。

Methods:Urethan water solution was administered by intraperitoneal injection to induce lung tumor nodes in the male offspring of A6 transgenic mouse, in which the NS gene is expressed in the lung.3-methylcholanthrene benzol solution was administered by subcutaneous injection at left scapular region to induce tumor in the female offspring of A6,in which scapular NS gene was not expressed.

给予肺组织表达非结构基因的首建者转基因小鼠A6子代雄性鼠腹腔注射氨基甲酸乙酯水溶液，以诱发肺瘤结节。

Serial Communication Data usurper complete solution, a good solution to the problem of data throne.

详细说明：串口通信中数据篡位的彻底解决办法，很好的解决了数据篡位的问题。

Condensed tannin-larch valonia, a kind of nature organic polymolecule and formaldehyde solution and dimethylamine water solution were used as raw materials to complete the Mannich reaction for tannin modification and the production was obtained.

本文以天然有机高分子化合物——落叶松栲胶为原料，用甲醛、二甲胺通过曼尼希反应对其中的缩合类单宁进行阳离子化改性，制得阳离子单宁。

The existence of the solution is also demonstrated according to the sufficient conditions for the solution of the elliptic variational inequality.

首先证明了所构造泛函的强制性，从而证明了所构造的等价变分不等式解的惟一性，并根据椭圆型变分不等式解存在的充分条件论证了弹塑性接触问题解的存在性，为该问题的变分极值原理的建立莫定了数学理论基础。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。