DHH: Major versions usually indicate that backwards compatibility is no longer guaranteed.

Research on welding technique of DHH high-carbon railway track

DHH高碳钢道轨焊接工艺研究

DHK Electric Chain Hoist is a small light lifting equipment.

DHK环链电动葫芦是一种轻小型起重设备。

Conclusion: DMY could inhibit the AGEs in the renal cortex and put off the diabetic complication.

结论：冬梅饮可抑制肾皮质中AGEs沉积，阻止糖尿病肾脏并发症的发展。

Results Treatment with DMY increased obviously NO's content in a dose-dependent manner and improved the microcirculation.

结果：经DMY处理后，小肠微循环明显改善，血浆、小肠NO水平呈剂量依赖性升高，三个剂量组NO值均高于IIR组（P<0.05）。

The addition of 0.05% DMY significantly enhance ( P < 0.01) the feed conversion ratio.

0.05%的DMY极显著提高0～3周龄肉鸡的饲料转化率（P<0.01）；

DMY: a New Sex-determining Gene

一个新的性别决定基因DMY

The solubility of DMY in water changed large with the changes of temperature, 1.5900g/100g water at 100 ℃ and 0.0691g/100g water at 25 ℃ respectively.

二氢杨梅素在水中的溶解度随温度变化非常大，100℃溶解度为1.5900g/100g水，25℃下溶解度为0.0691g/100g水。

The results showed, compared with the hyperlipidemia control group, DMY reduced the weights of mice significantly;

结果表明：与高脂模型组比较，二氢杨梅素对高脂血症小鼠体重有明显减轻作用；

The image processing method includes particle three-dimensional locating and particle sizing and particle velocimetry and image noise filter. ( 6) A seris of the experimental have been performed to validate the ability of DIH method for particle field measurement.

开发了数码同轴全息技术的图像处理方法，包括三维图像重建、颗粒探测、颗粒定位、颗径测量、图像噪音过滤及速度场计算等方法。

DIH is compared with three best existing heuristics, RZ, WY and FL, on 1500 randomly generated instances.

DIH算法与目前求解流水调度问题最好的启发算法RZ、WY、FL在1500个实例上进行比较。

The Synthesis and Characterization of Cr(β-Dik) Cl_2(β-Pic)_2 Type Mixed Ligand Coordination Compounds

Cr（β-dik）Cl2（β-pic）2型混配配合物的合成与表征

Dik divided information focus into two types.

信息焦点存在不同的种类。

The numerical simulation of the new type of DNG is studied by using FDTD method and CST software, and the physical mechanism analysis for this structure is discussed in detail.

用时域有限差分法和CST软件对该新型结构进行了模拟对比，并对其物理机理进行了分析，解释了其双负效应发生的原因。

By using periodical condition the dispersion relation is obtained for 1D infinitely periodical photonic crystal composed of SNG or DNG.

对于SNG或DNG构成的光子晶体，利用周期性条件，进而得到了一维无限周期光子晶体的色散关系。

The design method and electromagnetic characteristics of cavity backed microstrip antenna with double negative ( DNG) substrates are studied in the paper.

研究了以双负材料为衬底的背腔微带天线的设计方法与电磁特性。

The full-wave simulations of double negative ( DNG) medium are made using higher-order time-domain computational electromagnetic methods.

利用高阶时域电磁计算方法对双负媒质的电磁特性进行了全波仿真。

Numerical results show that DNG can reduce the backscattering of objects, but increase forward scattering of objects simultaneously.

数值结果表明，双负介质减小目标后向散射，同时增大了目标的前向散射。

The scatter characteristic of electrically large objects coated by DNG is analysed.

分析了覆盖双负介质电大尺寸目标的散射特性。

Thermodynamic study on the extraction of Au ( iii) with DNG

DNG萃取金（Ⅲ）的热力学研究

This paper discusses analysis and synthsis of one kind of nonlinear sequences generators DKG which consist of a linear feedback shift register ( LFSR) with a primitive connective polynomial, a random select generator and a nonlinear feedforward function.

本文讨论一类非线性生成器的分析与综合。这类非线性生成器由三部份组成：nm级的带有本原联结多项式的线性移位寄存器，随机选择器；