有指导的

Between extraction and nonextraction group, there are significant difference. Conclusion Howes'method is instructive for orthodontic treatment.

采用Howes法评估牙弓骨量与牙量对正畸临床的诊断和拔牙与非拔牙矫治设计有一定的指导意义。

These results are very significant to guide photosensitize wastewater treatment and engineering practice.

这些成果对指导光敏剂化工废水的处理以及工程放大有重要的意义。

This paper adopts both qualitative and quantitive analyses, which are instruc-tive and useful in practical applica...

本文采用定性和定量结合的做法，在实际操作中有一定的使用和指导价值。

For the large-amplitude dust-acoustic waves, the range of the Mach number for the existence of soliton propagation has been obtained and it is shown that the compressive and rarefactive solitons can coexist in the dusty plasma.

该研究工作除了对本领域的基础研究作出贡献外，在控制尘埃污染问题和用电磁波诊断尘埃等方面有一定的指导意义。

Once this policy achieved traction, the Fed moved at a "measured pace" over the past 20 months to "renormalize" its policy rate.

当这一政策产生推动效果时，美联储马上以&有控制的速度&在过去的20个月内将政策性指导利率逐步&正常化&。

This method solved the problem of removal of residua on glass instruments after preparation of aniline, and could be applied to lab and industrial operation.

该方法很好地解决了制取苯胺后仪器残留物难以清洗的问题，对实验室相关实验和工业生产有一定的指导作用。

The results obtained can be used for setaria genetics and genome research, and are important for related sepecies in connected fields.

本研究筛选的ISSR引物及建立的优化反应体系可用于谷子等狗尾草属植物遗传多样性和基因组研究，并对其他近缘作物有指导意义。

The samples knitted by cotton/PTT slubby yarn perform badly in elasticity, abrasion resistance, air permeability and thermal retention.

本文对PTT/PET双组分长丝交织织物的服用性能进行了分析，希望对生产有一定的指导意义。

Fhe second part elaborates the procedure and the method of this cxpcriment.According to the achievement analysis of the final English examination (July, 1999) for Junior One in Wuzhou CLty, we applied the English Learning Strategies Inquiry Paper(Oxfoxd, 1993) to alt the samples. After being made t-Test~ to make sure that they have no obvious dissimi Ian tics in English achievement and strategies level,3 experiment classes and 3 contrast classes are chosen and dovided to 3 groups. Then they are trained half a year in 3 different ways:Group instructing Method, Self-learning---3--and-discussing Method and Permeating-in-teaching Method. The thirt part------Results and Analysis.

研究结果表明，不同的策略训练方祛、不同性别、不同成绩以及不同的训练时间对训练的效果均有不同程度的影响。1、分组指导法、自学讨论法和随堂渗透法这三种训练方式取得了不同的训练效果。2、从整体上说，男、女生英语学习策略的短期和长期训练效果都非常显著，但自学讨论法学生的短期学习策略训练效果存在性别差异。3、在不同成绩组学生的英语学习策略训练中，其短期训练效果有显著的差异，但其长期训练的效果则基本一致。4、英语学习策略训练的时问长短不同，训练效果的大小就不同。

Definition of the anatomy of the uterosacral ligament and its adjacent structures is great beneficial for suspension of vaginal wall prolapse and uterus prolapse.

子宫骶韧带及相邻结构的解剖形态对临床开展子宫骶韧带悬吊术治疗子宫脱垂及阴道膨出有重要的指导意义。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。