Penstock

(n.) A close conduit or pipe for conducting water, as, to a water wheel, or for emptying a pond, or for domestic uses.

(n.) The barrel of a wooden pump.

汉克整理

• Each turbine in a penstock represents the power of 5,000 horses, and there are now ten or more employed. 威廉·亨利·杜利特. 世纪发明.
• At the bottom of the penstock is placed a turbine wheel fixed on a shaft, and to which shaft is connected an electric generator or other power machine. 威廉·亨利·杜利特. 世纪发明.
• At the gate is placed a vertical iron tube called a penstock, 7? feet in diameter and 160 feet deep. 威廉·亨利·杜利特. 世纪发明.
• Water is conveyed from a reservoir or dam through a pipe (penstock) to the turbine case, in which is placed the heavy metal turbine wheel (Fig. 122). 伯莎M.克拉克. 科学通论.

校对:莫利