Experimental comparison study on routine rehabilitative methods of concrete crack was performed in this paper.

The comparative study of corrosion inhibitive effect between pickling inhibitor Lan-926 and Lan-826;

Comparative study between the laparoscopy and laparotomy for the patients with adhesive intestinal obstruction;

Etiological Diagnosis of 34 Patients with Suspected Obscure Small Intestinal Bleeding -- A Comparative Study of Double-balloon Push Enteroscopy and Enteroclysis;

The Contrastive Study on Teaching Methodology Systems between Chinese and English as Second Languages;

The Contrastive Study on Noun of Modern Chinese and Uighur Languages;

A Contrastive Study of Cohesive Devices between Ancient Chinese and Modern Chinese;

Contrast Study on the Treatment of Chronic Supraspinal Ligament Injury with Pi-Zhen Combined with Traditional Dianxue and Block Therapy;

Clinical contrast study of antibacterial action by urinary catheters coated with nanometer-silver;

Through the contrast study among several major logging curves in the coalfields,this article is trying to find out their internal communication and relevant affection factors.