At startup, there is no back-EMF due to the stationary motor, and the motor position cannot be detected in sensorless mode.

在启动时，没有反电动势，在无传感器模式下电机的位置不能检测到。

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Steam tanks are in several screenshots and gameplay videos but it is not yet known if they will just be stationary, NPC driven, or a possible vehicle or mode of transportation.

在一些截图和动画中可以看到有蒸汽坦克，但是目前还不能确定他们是不是由NPC控制的却不能动的。 或是一种交通工具的样式。

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First we employ EMD method to decompose the crude oil prices in NYMEX, and obtain a series of intrinsic mode function (IMF), which are stationary and of strong periodicity, and a trend term.

首先利用EMD方法对NYMEX市场的原油期货价格进行分解，得到一系列平稳且具有较强周期性的本征模函数(IMF)和一个趋势项。

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