() are commonly used in mechanical-hydraulic governor(调速器) to sense engine speeds.
A、Bulbs
B、Bulks
C、Flyweights
D、Flywheels
A、Bulbs
B、Bulks
C、Flyweights
D、Flywheels
A、A commonly used abbreviation such as NYC is used B、The name is spelled out C、The geographical coordinates are used D、The radio station call sign for the nearest marine radio station is used
A、A commonly used abbreviation such as NYC is used B、The name is spelled out C、The geographical coordinates are used D、The radio station call sign for the nearest marine radio station is used
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、Between;more commonly B、Among;the most commonly C、Between;not more commonly D、Among;not the most commonly
A、compressed air and nitrogen B、helium and nitrogen C、oxygen and hydrogen D、oxygen and acetylene