decreasing taxa是什么意思

网络释义

用法例句

Reaction rates of 27Al(n,α)24Na, 197Au(n,2n) 196Au and 197Au(n,γ) 198Au reactions in Be/PE/Fe combined spheres bombarded by central DT neutrons were measured by activation foil method with a HPGe detector.

用HPGe探测器和活化箔法测量了DT中子照射下27Al(n,α)24Na、187Au(n,2n)196Au、197Au(n,γ)198Au反应在铍／聚乙烯／铁组合球中的活化率。

Reaction rates of 27Al(n,α)24Na, 197Au(n,2n)196Au, 93Nb(n,2n)92Nbm,197Au(n,γ)198Au reactions in depleted uranium(DU) and DU/PE/Fe combined spheres bombarded by central DT neutrons were measured with a HPGe detector.

用HPGe探测器测量了DT中子照射下27Al(n,α)24Na、197Au(n,2n)196Au、93Nb(n,2n)92Nbm和197γ)198Au几个反应在贫化铀、贫化铀/聚乙烯/铁组合球中的活化率。

The DT neutron transmittance of 8 kinds of Fb-B polythene composite were measured by BC501A detector.

利用液体闪烁探测器BC501A,测量得到铅硼聚乙烯等8组实验样品的DT中子透射率实验数据。

Measurements of DT Neutron Transmittance of Pb-B Polythene

铅硼聚乙烯等材料的DT中子透射性能研究

Research on Application of Subchannel Power Control in the DT-OFDM System for Satellite Communications in Ka Band

子信道功率控制在Ka频段DT-OFDM系统中的应用研究

DT Domains and α-, b-, c- Operation in Commutative Rings;

DT整环和环上的α-，b-，c-算子

Rate Control in Video Coding Based on DT-mesh;

基于DT网格的视频编码中的码率控制算法研究

Application of shadowgraph in DT cryogenic target development

背光成像技术在DT冷冻靶研制中的应用

Effectively Detecting Line Spectrum of Ship-Radiated Noise Using DT-CWT Statistical Model

基于DT-CWT统计模型的舰船噪声信号中线谱信号检测研究

Perhaps the simplest illustration of the role of stress waves in dynamic crack propagation and crack arrest is given by the one-dimensional analysis of the double torsion specimen.

也许最简单地说明在动态裂纹扩展和止裂中应力波的规律是由双扭（DT）试件的一维分析给出的。

Degenerative Transfer Polymerization of Vinyl Acetate and Its Block Copolymerization;

醋酸乙烯酯的DT聚合及其嵌段共聚

An Analysis of the Core-Competencies of the DT Software Company;

DT软件公司核心竞争力构建案例研究

Design of Project Performance Management System in DT Software Company;

DT软件公司项目绩效管理系统设计

Compensation Systems of DT Branch of Chengdu R&D Personnel;

DT成都分公司研发人员薪酬体系设计

Marketing Research and Product Positioning of Chengdu DT Garden;

成都DT花园的市场调查和产品定位

Study of the Performance Evaluation System for R&D Employees of DT Company;

DT公司研发人员绩效考核系统研究

Research on Strategy of the Structured Cabling Products of DT Cable Plant;

DT电缆厂综合布线产品发展战略研究

Degenerative Transfer (DT) Polymerization of Vinyl Acetate;

衰减链转移自由基（DT）聚合醋酸乙烯酯

The Program Strategy of Lazy DT Based on ID3;

基于ID3的Lazy DT分类器实现策略

The structure theorem of solution of the system of differential equation (dX)/(dt) = AX;

微分方程组(dX)/(dt)=AX解的结构定理

Probe into A Few Object Mechanical Problems by dE/dt=0;

用(dE)/(dt)=0探讨几个刚体动力学问题