stratified gastight system for acquiring water
气密水样采集系统

Clinical Study of Lidocaine Solution on Acute Epigastirc Pain in Internal Medicine
口服利多卡因处理内科急性上腹痛的临床研究

Atrophic gastitis is often the precursor of cancer.
萎缩性胃炎往往是癌变产前兆。

precancerous lesion of gastic cancer of rats
大鼠胃癌前期病变

Objective To investigate distrbuting feature and significance of stroma reaction in developing gastic carcinoma.
目的观察进展期胃癌间质反应的分布特点，研究其意义。

Synthesis of megastigmatrienone, an important tobacco fragrant component was summarized with 20 references.
简要综述了烟草香气成分巨豆三烯酮得合成研究概况。

Megastigmus sp.
铁杉大痣小蜂

The Study, manufacture and application of high gastight smoke damper and smoke exhaust damper
高气密防、排烟阀门的研制与应用

ectopic gastic mucosa imagine
异位胃黏膜显像

The gastightness measurement with pressure test is very important in phosphine fumigation.
气密性测定在磷化氢熏蒸中具有重要的意义。