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In the method, the symmetric positive semidefinite matrices are updated to approximate the Hessian matrices of the elemental objective functions and their sum to approximate the Hessian matrix of the objective function.

算法用对称半正定矩阵作为元素目标函数的Hessian阵的近似，使得其和仍然保持目标函数的Hessian阵的某种稀疏性。

As an Elemental, this rolling stone gains +4 attack and can make extra swings in defense of the Hierophant via Nature's Loyalty.

身为一个元素，这颗滚石可以得到攻击加成+4而且因为导师『忠於自然』的能力而能在防卫时得到额外的攻击机会。

We produce the activity sodium humate containing elemental selenium, titanium, thorium, strontium, rare earth and other active substances, which is the other similar products do not have.

我们生产的活性腐植酸钠含有元素硒、钛、钍、锶、稀土等活性物质，这是一般同类产品所不具备的。

Two novel development accelerant s with function were synthesized from 6-amido-benzimid-azole, phenyl-hydrosulfuryl-triazole and ringy hydrazide. The structures were confirmed by IR, MS and elemental analysis.

以6-氨基苯并咪唑和苯基巯基三唑为吸附基团，以环状酰肼为显影促进基团，合成了两个新型功能性显影促进剂，其结构经IR，MS和元素分析确证。

In the fourth chapter, four new complexes of hydrazide of podophyllic acid with transition metals have been prepared. Elemental analysis, molar conductivity, IR,〓 NMR and TG-DTA were used to characterize them. The results show that general formula of the complexes is M〓(n=0 or 2). The ligand is linked through the carbonyl oxygen and the terminal nitrogen of the hydrazide base to the transition metal ions in bidentate mode.

第四章 合成了四种鬼臼酰肼的过渡金属配合物，通过元素分析、摩尔电导、红外光谱、核磁共振氢谱和热重-差热对配合物进行了表征，研究结果表明，配合物的组成为M〓（n=0或2），配体是通过羰基氧和肼基上的端氮以双齿形式与金属离子配位的。

Benzaldehyde nitrogen mustard isonicotinoyl hydrazone was synthesized according to literature method. The copper , cobalt , nickel , chromium , iron , zinc and cadmium complexes of it were prepared and characterized by elemental analysis, IR, UV-vis, NMR and EPR spectra. The cytotoxicity effect of the complexes was examined on SMMC-7721 cell line. Results show that the complexes have definite antitumor activity and the synergic effect between chromium and the ligand.

依照文献合成了异烟肼苯甲醛氮芥腙及其铜、钴、铬、镍、铁、锌和镉配合物并用元素分析、红外、电子光谱、核磁共振及电子顺磁共振光谱，对这些配合物进行表征，确认了它们可能的立体结构，并研究它们对SMMC-7721人肝癌细胞的作用，结果表明它们均有一定的抗肿瘤作用，发现铬与配体存在有协同作用。

The selective reduction of sulfur dioxide with hydrogen to elemental sulfur is studied over Ru/Al 2O 3 in this paper.

本文对用H2 来使SO2 选择性催化还原为单质硫在Ru/Al2 O3催化剂上的行为进行研究。

They are elemental in the ongoing changes in the nervous and hormonal systems controlled by hypothalamus.

在动物的神经和激素体系持续的发展中自然发展。

The weight—average molecular weight and imidazole content of PBIOM were determined to be 3.4×105 and 57 mol ％ by GPC and elemental analysis,respectively.

合成的PBIOM重均分子量和咪唑基含量分别由GPC和元素分析方法测定，结果为3.4×105和57mol%。

A novel epoxy resin containing imide and naphthyl groups was synthesized to produce heat resistant polymer. The chemical structures were characterized by ~1H-NMR,~(13)C-NMR, FTIR spectra and elemental analyses.

合成了一种新型含萘环和酰亚胺结构的环氧树脂BHPD-EP，其化学结构由~1H-NMR、~(13)C-NMR、FTIR和元素分析进行了表征。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。