Military strategy may bear some similarity to the chessboard but it is dangerous to carry the analogy too far.（英译中)

When the bearing becomes dry from lack of oil, the motor shaft may heat to ______ an extent ______ it welds itself to the bearing.

In some modern large diesel engines, which of the following is used as the support for the main bearings？

The main bearing shells are made of steel with a lining of bearing metal which may be whit

The following are endangered species EXCEPTA．tigers.B．whales.C．polar bears.D．some types of

Some children find it harder to adopt Winchs healing strategies becauseA．they rely on thei

● There are strategies typically deal with threats or risks that may have negative impacts