1·THOUGH half of Ecuador lies in the Amazon basin, its rainforest is shrinking faster than in neighbouring countries (by 1.67% a year). It has been ravaged by logging, poachers and oil extraction.
尽管厄瓜多尔的一半位于亚马逊流域，其雨林相比邻国，缩减得却更为迅速(一年缩减1.67%)，受到了伐木、偷猎和采油的破坏。
2·What is more, oil extraction equipments have key effects upon the whole oil field.
而采油设备对于整个油田的关键作用更是不言而喻的。
3·PAM is the most widely used organic macromolecule, has been widely used in oil extraction, water treatment, refine sugar and coal washing, processing, paper and other industrial sectors.
PAM是目前应用最为广泛的水溶性有机高分子，已广泛应用于采油、水处理、制糖、洗煤、选矿、造纸等工业部门。
4·This system operation is convenience, real time, and suitable for the especially circumstance of shallow sea oil extraction.
该系统操作方便，有良好的实时性，适合浅海采油平台的特殊环境。
5·The modal parameters of the equipments for oil extraction are identified.
本文通过脉动试验识别了采油生产设备的模态参数。