Brazil has felt vulnerable to soaring oil prices and to supply disruptions.巴西感到经受不了油价飞涨和供应中断的威胁.While these disruptions in life are not easy, they are necessary.即使这些碎片在生命里是很不容易的, 但却是必须的.Effects of machine failure , set -...
Problems with fire, gas, or oil may cause disruptions and annoyances.关于火 、 气或者油的问题可能引起分歧和烦恼.Effects of machine failure , set - ups, and other disruptions on system performance.机器失效 、 安装和其他中断对系统性能的影响.The rail strike is ca...
The impellers are kept in their proper relationship to each other by spur gear.液轮之间借助于正齿轮保持彼此正常的关系.Mainly by the impellers, pump body and pump cover composition.主要由叶轮 、 泵体和泵盖组成.Welding is one of the important technologie...