Large pipes or _____ are fitted between the steam and water drums to ensure good natural c

Where tanks are arranged for either oil or ballast __ must be fitted in the pipe so that only the ballast main or the oil transfer main connected to the tank..

The local police are authorized to______ anyones movements as they think fit.A．haltB．pause

No matter ____ it is young or old, large or small, every family has a sense of what a family is.

Generally speaking, suction heads require to be _____ for high speed or large capacities t

_____ are fitted in the exhaust system and facilitate charge removal and scavenging in eac

Cross scavenging requires the fitting of _____ to prevent air or exhaust gas escape when t