目的观察噻氯吡啶与华法林在治疗心腔内附壁血栓的疗效及安全性。
Objective To investigate the safety and efficiency of ticlopidine and warfarin on intracardiac mural thrombus.
依据浅埋煤层矿压显现特征，给出浅埋煤层长壁开采工作面支架合理工作阻力及安全界限的确定方法。
Base on the weighing feature of the shallow coal bed, the specifying method of the support working resistance and safety margin is presented in the shallow coal bed.
金属油罐加强圈的合理确定，对防止油罐罐壁失稳，保证油罐安全生产具有重要作用。
Reasonably defining reinforcing rings for metal tanks is important in avoiding less stability of tank shells so as to guarantee safe operation.
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