Các bác ơi giúp em dịch đoạn văn này nhé: đoạn văn này có nhiều từ em dịch không ra
Mechanical clutches fall into two main categories: positive engagement and progressive
engagement.
The former is either positively disengaged, so that no torque can be transmitted from the
driving to the driven shaft, or positively engaged, in which case the shafts rotate together,
connected by some mechanical devices such as splines, keys. In contrast, the progressive type
is gradually engaged, so that the speed of the driving shaft falls while, simultaneously, that of
the driven shaft rises from its initial stationary state until both are rotating at equal speeds.
Positive engagement clutches are unsuitable for connecting the engine to the gearbox.