Clearly the principle requirement for a substance to be capable of forming a structural unit of a polymer chain is that it must be difunctional.

Such a process is particularly useful in the production of difunctional monomers and intermediates in the synthesis of adipic acid.

这样一种方法对于制备双官能单体和合成己二酸的中间体特别有用。

In this paper modem molecular simulation technology and quantum chemical calculation method are adopted to determine the material for synthesizing difunctional peroxide initiator.

本文用现代分子模拟技术，采用量子化学计算方法确定了合成双官能度过氧引发剂的原料；

The Synthesis and Application of a Difunctional Group Phase Transfer Catalyst

双官能团相转移催化剂的合成和应用

Study on Synthesis of SPEU with Different Difunctional Reagents as Extender

以含有不同活性双官能团试剂作扩链剂的嵌段聚醚氨酯合成研究

Study on the Experiment and Measurement for Wireless-fuse Crossing High-speed Goal Difunctional Fuse Resistor

多卜勒引信的弹目交会模拟实验与测试系统研究双功能熔断电阻器

The synthesis, properties, modification and application of polybenzoxazines were reviewed. Besides, the other difunctional benzoxazines and polyfunctional naphthoxazines were also discussed.

综合介绍了苯并口恶嗪树脂的合成、性能、改性和应用，并对其他双酚类苯并口恶嗪和萘并口恶嗪进行了概述。

Quantitative analysis of organic functional groups difunctional comonomer

有机官能团定量分析二官能[团]共聚单体

Synthesis and properties of difunctional cycloaliphatic epoxides

双官能团液体脂环族环氧化合物的合成与性能

Clinical analysis of erectile disfunction and sex transmitted disease

性传播疾病与勃起功能障碍

Coxsackie virus; Multiple organs and multiple systems disfunction; Young child.

柯萨奇病毒；多器官多系统损害；小儿。

Clinical Significance of Detection of Serum Interleukin-8 in Children with Thyroid Disfunction

甲状腺功能异常患儿血清白细胞介素-8检测的意义

Objective To study efficiency of prostaglandin EI for chronic renal disfunction.

目的探讨前列地尔注射剂对慢性肾功能不全的疗效。

Cases died of multiple organ disfunction syndrome ( MODS).

3例（4条肢体）围手术期发生多脏器功能衰竭死亡。

Lumbar spine instability mainly exhibits the spinal functional units' disfunction.

下腰椎不稳症主要表现为脊柱功能单位的异常。

The protection of spinal cord disfunction caused by acute ischemia

脊髓急性缺血后功能障碍的保护

Objective To determine the relationship between erectile disfunction and sex transmitted diseases.

目的探讨勃起功能障碍（ED）与性传播疾病（STD）的关系。

The treatment and pathogenesis of liver and renal disfunction caused by severe trauma with shock

严重创伤后休克并发肝肾功能障碍的治疗及机制分析

The introduction of public policy without strict legal restriction is likely to cause government disfunction.

我国竞争政策及其立法明显滞后，公共政策的介入如果没有严格的法律约束，便很容易导致政府的失灵。

Perioperative Management of Renal Disfunction and Acute Renal Failure in Adult Patient Undergoing Cardiac Surgery

成年心脏病人围术期肾脏功能不全和急性肾功能衰竭的综合治疗

The Neural Mechanism Underlying Urinary Bladder Disfunction Secondary to Chronic Prostatitis

慢性前列腺炎膀胱功能异常神经机制的实验研究