The best time limit of updatingequipment is the economic lifetime of equipment.
从经济效益角度确定的设备更新的最优期限即为设备的经济寿命。
2
Updatingequipment, reforming technical and improving equipment performance are the key to improve spinning quality and fulfill high quality demand of products.
要进一步提高纺纱质量，满足产品高品质、高档次要求，进行设备更新和技术改造、提高设备性能是关键。
3
I am certain that by the end of the century we can surpass the goal of quadrupling the GNP. At that time, when we are strong economically, we shall be able to spend more money on updatingequipment.