1、

This article reviewed the synthesis of N-substituted aza crown ethers and their new applications to the field of selective complexation and extraction for metal ions.

摘要综述了n-取代氮杂冠醚的合成和对金属离子的选择性络合和萃取研究的新进展。

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2、

Mould, manufacturing cycle, the n back-propagation ( BP ) neural network, the mathmatical model.

模具生产周期预测, 制造周期, 设计周期,人工神经网络BP算法.

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3、

This thesis proposes a N step color phase-shifting method for measuring 3 D shape of objects.

本论文提出一种N步彩色相位移法用以量测物体的三维外形.

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4、

The average content of soil available N of layer 0~ 60 cm gradually increases at the stages of herbage and arbour with vegetation restoration, and the change at the stage of shrub is just the contrary.

0~60cm土层土壤速效N的平均含量在植被恢复的草本和乔木阶段,随植被的恢复演替而不断增加,在植被恢复的灌木阶段其含量变化则相反。

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5、

The Synthesis of New Chiral N, P Ligands and Their Applications in Asymmetric Hydrogenation and Allylic Alkylation

新型手性N,P配体的合成及其在不对称氢化和烯丙基烷基化反应中的应用

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6、

The life of bending fretting fatigue was significantly influenced by the alternating stresses. The higher stress level was, the lower fatigue life occurred. The S-N curves of bending fretting fatigue appeared shapes of C type.

对于弯曲微动疲劳,交变应力对寿命的影响十分显著,应力水平越高,微动疲劳寿命越低,弯曲微动疲劳的S-N曲线呈C曲线型。

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7、

The findings of this work provides a general guideline for designing stable ambipolar and n-type organic semiconductors materials.

这一结果为我们设计合成稳定的n型与双极性有机半导体分子提供了指导。

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8、

Objective: Postnatal treatment of female rats with andro^ n results in subsequent infertility. The mechanism of hyperandrogenism and chronic anovulation in androgen-sterilized rats ( ASR) is unclear.

目的:给新生雌性大鼠注射雄激素可导致其成年后不孕,这种雄激素致不孕大鼠(androgen-sterilized rats,ASR)雄激素增高,不排卵,其机制尚不清楚。

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9、

It had achievement under the study of G-N-M-J four-factor compound arousing system. It gains anhydrite cement, which coagulates in 30 minutes.

原有硬石膏G-N-M-J四元复合激发体系的改性研究已取得了较好的成果,得到了凝结时间控制在30min的硬石膏胶结料。

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10、

Arthropods ( e.g. termites) and annelid ( e.g. earthworms) metabolise CH 4 and N 2O, respectively.

节肢动物(白蚁)和环节动物(蚯蚓)是分别代谢CH4和N2O的两个关键性生态功能类群。

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11、

Effect on the Yield of Artemisia annul using Different Amount of Fertilizer of N, P, and P

不同氮磷钾用量对黄花蒿产量的影响

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12、

Antidotal Effect of N-acetylcysteine in Rats on Acute Poisoning with Sodium Cyanide and its Mechanisms

N-乙酰-L-半胱氨酸对氰化钠急性染毒大鼠的解毒作用及机制

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13、

Design of Apochromatic Microscope Objective with N.A O.65 × 25 and Flat Field

N.A0.65×25平像场复消色差显微物镜光学设计

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14、

Top UN Official Accuses Burma of Obstructing Aid The U.N.'s top human rights official, Louise Arbour, has lashed out at Burmese authorities for obstructing aid to victims of Cyclone Nargis.

联合国人权事务高级专员阿尔布尔猛烈抨击缅甸政府阻碍向“纳尔吉斯”强热带风暴灾民提供援助。

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15、

Tighten the N coupling nut on the AC servo motor side temporarily.

临时拧紧马达边的N型连接螺母.

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16、

We first introduce three methods of finding the sum of the first n terms for an arithmetic sequence of higher order, and then display another method by some formal derivatives of which are defined.

首先,简要介绍了三种主要的求和方法。然后,根据高阶等差数列通项的特性,利用新定义的形式导数列对其进行了有效的探讨。

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17、

Tighten the N coupling nut on the ball screw side.

拧紧丝杆边的N型连接螺母.

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18、

The Enshrouded Difference of Arithmetic Progression with n Order

n阶等差数列的隐蔽公差

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19、

Synthesis and · O_2~-Scavenging Bioactivity of Rare Earth Complexes with N-( Salicylaldehyde) Asparagine Schiff Base

水杨醛缩天冬酰胺Schiff碱稀土配合物的合成与抗·O2~-生物活性

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20、

Using the characteristic asparagine sequon detection, we found 48 possible N-glycosylation sites in 39 proteins.

应用糖苷酶酶切和特征性的天冬酰胺序列子的检测发现了39个蛋白中的48个潜在的N型糖基化位点。

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