pin valve

This paper briefly analyzes the accident of failure of fuel oil injection of single cylinder in the main engine,which caused by needle valve sticking in the injector pump.

分析了某船主机由于喷油泵针[形]阀故障造成单缸停油的事故,并提出应对措施,以期同行们能从中吸取教训,避免类似事故发生。

Annals of Zuo·the Tenth of King Cheng(左传成公十年)contains a sentence that is Gong Zhi Bu Ke Da Zhi Bu Ji(攻之不可,达之不及),Da(达)was explained by Du Yu(杜预)to acupuncture.

《左传·成公十年》有"攻之不可,达之不及"一句,杜预把"达"解释为"针"。

Objective:To observe the prevention mechanism of the acupuncture .

目的： 本课题以去势大鼠为研究对象，通过观察血尿中骨代谢相关的生化指标的变化以探讨针灸及山茱萸总甙对骨质疏松症的预防机制。

Objective:To observe the effect of acupuncture, moxibustion and Chinese herbs on the cellular immunity function of tumor-bearing mice and to afford the scientific experimental basement for the further study on the mechanism of the inhibition effect of acupuncture, moxibustion and Chinese herbs on tumor.

我们以前已经作了关于针灸、中药对肿瘤模型小鼠的抑瘤作用的实验研究，实验结果提示针灸、中药有较好的抑瘤效应，值得进一步深入研究。