Comparative research on the plant communities of moderate-degraded and heavy-degraded stipa alpine grassland;
中度与重度退化针茅型高寒草地群落比较研究
The existence and uniqueness of renormalized solutions of a doubly degenerate parabolic equation are discussed by means of parabolic regularization method.
利用抛物正则化方法证明了双重退化抛物型方程重整化解的存在惟一性。
4-Hydroxy 3 methyl 2 (2 propynyl) cyclopent 2 enone was prepared from 2 (1 hydroxy 3 butynyl) 5 methylfuran via catalytic rearrangement,and the traditional two step reaction was changed into an one step reaction.
由 2 (1 羟基 3 丁炔基 ) 5 甲基呋喃催化重排合成 2 炔丙基 3 甲基 4 羟基 2 环戊烯酮 (炔丙菊醇 ) ,将传统的两步反应简化为一步反应 ,简化了工艺流程 ,缩短了反应时间 ,炔丙菊醇的产率较高 ,达到 75 。
Trifluoromethylated allylic alcohol,obtained from trifluoromethylation of eucarvone,undergoes oxidative rearrangements to 2,5-bicyclooxo-5-trifluoromethyl-7,7-dimethyl-cyclohexen-3-one with pyridinium chlorochromate in the presence of superacid.
在超强酸存在下,进行此结构修饰物氧化重排实验,产生含二氢呋喃环的重排产物2,5-双环氧-5-三氟甲基-7,7-二甲基-环己基-3-酮。
Stability of renormalized solutions to a double degenerate parabolic equation
一类双重退化抛物方程重整化解的稳定性
Doubly Degenerate Parabolic Equations with Nonlinear Inner Sources or Boundary Flux
具有非线性源或边界流的双重退化抛物型方程
Existence of Solutions to a Class of Nonlinear Parabolic Equations with Double Degeneracy;
关于一类具双重退化非线性抛物方程解的存在性研究
Uniqueness of Weak Solutions of the Cauchy Problem for Doubly Nonlinear Parabolic Equations;
一类非线性双重退化抛物方程Cauchy问题弱解的惟一性
Existence of Local Solutions to a Class of Doubly Degenerate Parabolic Equations with Initial-boundary Value Conditions;
一类双重退化抛物方程初边值问题局部解的存在性
The existence and uniqueness of renormalized solutions of a doubly degenerate parabolic equation are discussed by means of parabolic regularization method.
利用抛物正则化方法证明了双重退化抛物型方程重整化解的存在惟一性.
non-degenerate symmetric bilinear form
非退化对称双线性型
Intercritical Annealing Process of 70Nb Alloy Steel Wire
70Nb合金钢丝双相区球化退火工艺
Effect of duplex annealing on microstructure and properties of TC18 titanium alloy isothermally forged
双重退火对TC18钛合金等温锻件组织性能的影响
ESDJ Easy Setting Dual Jumper
简化CPU双重跳线法 浩鑫
NONDEGENERATE INVARIANT BILINEAR FORMS AND THE CENTROID ON LIE TRIPLE SYSTEMS;
李三系上的非退化的不变双线性型与形心
DD-RTPCR analysis of the substrate degradation ability degenerating strains of Agaricus bisporus
双孢蘑菇分解基质能力退化菌株的DD-RTPCR分析
Joint Frequency-DOA Estimation Based on Degraded Double L-Array
基于退化双L型阵列的频率-波达方向联合估计
Impact of Double-Hump Substrate Current on the Degradation of High Voltage MOS Transistor
双极值衬底电流对高压MOS器件退化的影响
Study on the Parameter Degradation of Silicon Microwave Pulsed Power Transistor
硅脉冲双极型微波功率管参数退化探索
any of several degenerative nervous disorders characterized by spasmodic movements of the body and limbs.
严重退化性神经混乱身体痉挛。
ECOLOGICAL RECONSTRUCTION OF DEGRADED LAND: A SOCIAL APPROACH;
退化土地的生态重建:社会工程途径
Technology Optimization of Pickling and Cold Rolling Combination Line of Tangshan Iron & Steel Co.,Ltd.
唐钢酸轧—退火—平整—重卷主线工艺优化