The packing installed in the pump stuffing box is lubricated by ().
A、gravity and feed oil cups
B、grease cups
C、hand during installation
D、leakage through the stuffing box
A、gravity and feed oil cups
B、grease cups
C、hand during installation
D、leakage through the stuffing box
A、A. Deploy the service pack to a single department within the corporation. B、B. Upgrade the system with requirements for that service pack. C、C. Deploy the service pack to a non-critical application server. D、D. Submit a change control for the service pack deployment.
A、closed, and no leakage permitted across the shaft packing B、closed, and only slight leakage permitted across the shaft packing C、open, and no leakage permitted across the shaft packing D、open, and only slight leakage permitted across the shaft packing
A、a compressed packing gland B、lantern tings between the packing rings C、a liquid seal D、the stuffing box gland
A、Pack://application:,,,/myAssembly;component/MyFolder/myImage.jpg B、Pack://application:,,,/myAssembly;MyFolder/component/myImage.jpg C、Pack://application:,,,;component/myAssemby/MyFolder/myImage.jpg D、Pack://application:,,,/myAssembly;component/myImage.jpg
A、are wrapped;being packed B、are wrapping;packing C、are wrapped;packed D、being wrapped;are packed