A、varying the D-Cexciter voltage
B、varying the reluctance of the air gap
C、regulating the speed of prime mover
D、shorting out part of the armature windings
更多“On commonly used ships,if two A√Cgenerators are operated in parallel, the load is distributed evenly by （）.”相关的问题
A、Between；more commonly B、Among；the most commonly C、Between；not more commonly D、Among；not the most commonly
A、the most common method used in the United States B、too expensive for common use C、generally safe to sea life D、authorized only with prior approval of the Federal On-Scene Coordinator
A、the most common method B、too expensive for common use C、generally safe to sea life D、authorized only with prior approval of the governmental On-Scene Coordinator
A、A. System privileges apply only to the PDB in which they are used. B、B. Local users cannot use local system privileges on the schema of a common user. C、C. The granter of system privileges must possess the set container privilege. D、D. Common users connected to a PDB can exercise privileges across other PDBs. E、E. System privileges with the with grant option container all clause must be granted to a common user before the common user can grant privileges to other users.
A、the most common method used in the United States B、too expensive for common use C、generally safe to sea life D、generally harmful to sea life
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