质量作用

The casing centralizer is used to centralize the casing in the bolehole to ensure the even solidification of cement slurry within the annular,which can improve the cement job quality.

套管扶正器的作用是使套管在井眼内居中，保证固井时水泥浆均匀凝固在套管与井壁所形成的环形空间内，从而提高固井质量。

The effects of the reaction time,the concentration of chloral and the pH on dechlorination were obtained,and the results showed that the dechlorinate effect was obvious.

实验结果表明，还原铁粉对三氯乙醛有明显的脱氯作用，脱氯率随三氯乙醛质量浓度的减小而增大，随pH值的减小而增大，随反应时间的增加而增大。

The influence factors of mechanical properties of the ionomers, the compatibilization of the ionomer for SBS/ chlorohydrin rubber blend and the effect of mass ratio on properties of ionomer/polypropylene blends were investigated.

研究了离聚体力学性能的影响因素、离聚体对SBS/氯醇橡胶的增容作用、质量比对离聚体/聚丙烯共混物性能的影响。

It is important for the cooling rate and quality of foodstuffs in the cold store with the uniform flow and temperature field.

合理的气体流场才能保证均匀的温度场，这对冷藏库内货物的降温速率和贮藏质量起着至关重要的作用，而常规设计方法很难得到合理的气体流场。

High quality of accounting information is necessary for the fast development of economy, which plays an important role in the collocation of social resources.

经济的高速发展离不开高质量的会计信息，会计信息在社会资源的合理配置中扮演了极为重要的作用。

Objective:To study the effective of health education for the quality of life in the rectum tumors patient with colostomy.

目的：研究健康教育在直肠癌结肠造口病人生存质量中的作用。

Objective:To study the effective of health education for the quality of life in the rectum tumor' s patient with colostomy.

目的：研究健康教育在直肠癌结肠造口病人生存质量中的作用。

It is important to improve the quality of life in the rectum tumors patient with colostomy, Such must be bring to the mass of nursing staff's highly attention.

健康教育在提高结肠造口病人生存质量中起着非常重要的作用，应引起广大护理人员的高度重视。

Increasing the selective reduction ability of NOx under lean burning condition, enhancing the thermal stability and decreasing the light-off temperature of the catalysts are the three key researching hot points in the area. And quality of the honey comb g-Al2O3 coatings, additives and the preparation parameters are the major effectors of the catalytic activation of the catalysts.

目前对单钯三效催化剂的研究的热点和难点在于：1 提高催化剂对氮氧化物的选择还原能力； 2 增强催化剂的高温热稳定性；3 降低催化剂的起燃温度。g-Al2O3 性能质量，助催化剂的选择及用量，涂层及催化剂的制备工艺等对单钯三效催化剂的催化活性起决定性作用。

Increasing the selective reduction ability of NOx under lean burning condition, enhancing the thermal stability and decreasing the light-off temperature of the catalysts are the three keyresearching hot points in the area. And quality of the honey comb g-Al2O3 coatings, additives and the preparation parameters are the major effectors of the catalytic activation of the catalysts.

目前对单钯三效催化剂的研究的热点和难点在于：1 提高催化剂对氮氧化物的选择还原能力； 2 增强催化剂的高温热稳定性；3 降低催化剂的起燃湿度。g-Al2O3 性能质量、助催化剂的选择及用量、涂层及催化剂的制备工艺等对单钯三效催化剂的催化活性起决定性作用。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。