According to common quality defects of concrete such as honeycomb,surface voids,low strength and so on their causing reasons are analyzed;at the same time corresponding prevention and treatment measures are proposed in order to ensure engineering quality of concrete.

According to the quality problems encountered in pouring process of concrete, such as pore, surface voids, honeycomb of concrete, bare bar and so on, the reasons caused those quality problems are analyzed; at the same time corresponding preventive measures are presented in order to maximally eliminate quality problems to ensure construction quality.

Combined with experiences, it analyzes causes of mass defect on concrete including honeycomb、surface voids、holes and slot interlining, prevention measures are putted forward to ensure project quality.

Analysis of surface pockmarks on the rod of gas valves of 4Cr10Si2Mo steel;

The application of small-incision manual extracapsular cataract extraction using topical anesthesia in preventing blinding of mobile operating vehicle;

Application of underlaying and pressing nuclear expulsion in small and tunnel incision non-phacoemulsification under topical anesthesia;

Clinical evaluation of topical anesthesia in phacoemulsification and intraocular lens implantation and trabeculectomy;

Array multifocal IOL implantation under surface anesthesia;

Application of surface anesthesia in treating freckle with chemical peeling;

Surface anesthesia combined with subconjunctival anesthesia for glaucoma surgery;

Propofol target controlled infusion combined trachea topical anaesthesia for the removal of foreign body from trachobronchus in children;

Clinical Trabeculectomy under topical anaesthesia;

Phacoemulsification and intraocular lens implantation through temporal incision of topical anaesthesia;

Application of superficial anesthesia with lidocaine in 728 cases of diagnosis and treatment with laryngofiberscope;

Effect of Intratracheal Superficial Anesthesia on Preventing Cardiovascular Reaction when Patients with Hypertension Experienced Tracheal Intubation;

Objective To explore the dependability between the operation s effect and patient s position of eyes and head to discover the importance of instruction on eye and head s position before ophthalmologic operation by superficial anesthesia.