虽然应用统计模型能控制这些基线评估上的差异，但仍然存在一些无法测定的变量导致潜在的混杂。
Although statistical modeling could control for these measured baseline differences, the potential for confounding by unmeasured variables existed.
没有了皮托管，飞机的导航电脑就无法测定风速，自动驾驶系统就会被关闭。
Without them, a plane's flight computer has no way to determine speed, and the automatic pilot shuts down.
由于炉内火焰温度存在波动，使得采用常规的三热电偶方法无法测定真实的烟气温度。
Because of the pulsation of furnace gas temperature, it is impossible to measure the real gas temperature use normal three thermocouple.
应用推荐