based on available data

Unfortunately, it is difficult to risk stratify most patients based on available data but it is a goal to strive for in the future.

不幸的是，根据掌握的绝大多数患者的数据，风险分层都有困难，但这是我们将来努力的目标。

Based on available data and theoretical models, the method of computing the amplitudes of the radar returns and the computer simulation of this neW altimeters is presented.

在已有数据和理论模型的基础上，提出了雷达回波强度的计算方法，并对这种新型高度计系统进行了计算机模拟。

Official PPI data based on the current reference base are not available on previous index reference base periods.

基于当前参考基准的官方生产者物价指数数据在以前的指数参考基准期是不可用的。