查询词典 urea-formaldehyde

Therefore, it is also necessary to carry out further research in these areas, so as to take corresponding measures to prevent urea reactor accidents.

因此，还需要在以上领域开展进一步的研究工作，以便采取相应的措施，预防尿塔事故的发生。

In conditions of the high temperature and high pressure , urea is synthesize with liquid ammonia and carbon dioxide.

摘 要 尿素合成塔是合成尿素的关键设备之一，在较高的压强和温度下，液氨与二氧化碳反应生成尿素。

In this paper, a high functional active oligomer containing urea bond was investigated.

本论文进行了耐候型UV涂料的研究，主要进行了下面的工作。

Objective To evaluate the clinical validation and efficiency of on-line urea monitor.

摘 要：目的评价联机尿素监测仪在临床使用中的准确性和有效性。

The U.S. imports more than 40% of urea about half of the nitrogen used on its farms.

美国40％以上的尿素靠进口，约一半的氮素用于国内农场。

The rates of N applied as urea were: 75, 105, 135, 165 and 195 kg/ha.

氮肥施用尿素，用量为75、105、135、165和195公斤/公顷。

This system removes urea and other waste products from the body in liquid urine.

这一系统把尿和其它废物以尿液的形式从体内排出。

Objective To establish a utility and shortcut method for determining urea in swimming water.

目的 建立实用、准确的池水中检测方法。

Urea is one of the most important nitrogen-based fertilizers in the world.

尿素作为一种重要的化学肥料，在世界范围内其生产和使用居首位，此外它也是一种用途广泛的工业原料。

For example, it may be desirable in fertilizers to have the terminal urea group.

例如，在肥料有终端尿素小组也许是中意的。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。