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1·Objective:To summarize the clinical features of Mallord-Weiss syndrome(MWS)and to evaluate the experience on the diagnosis and treatment of MWS.

前言： 目的：了解食管贲门黏膜撕裂综合征的临床特点，总结食管贲门黏膜撕裂综合征的诊治经验。

2·The results show that VLE estimation method with MWS mixing rule based on PR equation is generally better than those with WS mixing rule. MWS mixing rule can be applied widely in engineering practice.

结果表明，采用PR方程结合MWS型混合规则预测汽液平衡结果一般优于WS型混合规则，能广泛应用于工程实践。

3·The results manifest that the dielectric-loading can lower the operating voltage of the ring-plane slow-wave structure. Good accordance was obtained between results by this method and that of CST-MWS.

计算结果与CST - MWS的模拟结果吻合良好，说明所提出的计算等效相对介电常数的方法和计算色散方程的方法对环板慢波结构是切实可行的。