HP超声粉碎抗原预防幽门螺杆菌感染的实验研究-胃疾病-论文中国 的口服疫苗免疫小鼠,观察其免疫保护作用，及探讨其保护性免疫应答的机制。方法：(1)HP的培养与鉴定：实验所用悉尼株(sydneystrain1,SS1)由中山医科大学惠赠，采用空肠弯曲杆菌琼脂培养基，微需氧条件下（O25,CO210,N285）37℃培
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The principle and implementation project of coupled control on type SS1 electric locomotive are intro-duced.
介绍了SS1型机车重联控制的原理，电气线路重联及空气制动重联的方案。
It also analyzes the locations on the SS1 locomotive being easily prone to troubles and locomotive depots that have higher trouble rates.
对ss1型机车易发故障的部位及故障率较高的机务段作了分析。
This paper introduces the operating principle and simulation test results of automatic control system of SS1 electric locomotive used for the sectioning of phase switching.
本文介绍了SS1型电力机车过相分段自动控制装置的工作原理和模拟试验结果。
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