There is great energy-saving potential in the oil refineries of the P. R. China because of the shortcomings such as high temperatures of discharging gas and low heat efficiency in the heaters.
我国炼油厂加热炉普遍存在排烟温度高和热效率低的缺点，具有较大的节能改造潜力。
Charles R. Fisher, a professor of biology at Pennsylvania State University, has studied the alien communities and says some are now in the path of the undersea oil plume.
宾夕法尼亚州立大学的生物学教授查尔斯·费舍尔是专门研究管状蠕虫的专家，他说在海底漏出油污浮起的路径上正生长着一些蠕虫。
The emergency switches for various oil pumps and E. R. fans are arranged at the entrance to the engine room .
各种油泵和船舱风机的应急开关装在机舱的人口处。
This instrument can measure automatically the oil consumption at the normal rating and the r. p. m. of the supercharger and the diesel, fitting with the corresponding primary meter.
这种装置可以自动测试柴油机在额定状态运行下的油耗率，并配合相应的一次元件能自动测试柴油机和增压器的转速。
The maximum contact pressure is decreased with the increase of the R value, and the change of R value has more remarkable influence on the maximum contact pressure of the small dimension oil seal.
最大接触压力随R值的增大而逐渐减小，且R值的改变对于小尺寸油封最大接触压力的影响较大；
However, higher temperature changes the distribution regularity of polarization resistance ( R a or Rc) of oil coatings.
流平温度对极化电阻分布规律有一定的影响。
Nowadays, at the western slope and the northern and southern uplifts the Lower Paleozoic source formations are still in the active oil generation Rold ( R o< 1.3%).
下古生界烃源岩在西部坡折带及南北隆起区现今仍处于有效生油窗内（镜质组反射率小于1.3 % ）。
R & D team dissolves the essential oil in the collar in a special way and control them to evaporate in the gaseous form to prevent the direct contact against pet skin and greasy collar surface.
研发团队以特殊制程方式将精油溶入颈圈并控制其以香气挥发避免精油直接接触宠物皮肤及表面油腻。
Using GC-MS, we detected the main absorbed compound in volatile oil from R. Acori.
由于石菖蒲主要含挥发油成分，故采用GC - MS检测其主要吸收成分。
Using GC-MS, we detected the main absorbed compound in volatile oil from R. Acori.
由于石菖蒲主要含挥发油成分，故采用GC - MS检测其主要吸收成分。
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