But the two methods are complex for sample pre-preparation, long time-consuming and have serious isobaric interference.
这两种方法精确度都比较高，但其样品预处理过程复杂，消耗时间长，而且存在着严重的同质异位素干扰问题。
2
For automobile manufacturers, the success of a new car to enter into the market includes all aspects of pre-preparation and marketing activities for the successful management in marketing activities.
对于汽车厂商来说一款新车的成功上市包括做好前期各方面的准备工作和对营销活动中的成功管理。
3
But a little advance preparation can go a long way in helping you get through all that pre-flight rigmarole with minimum fuss.