Counterweight

(noun.) a weight that balances another weight.

(verb.) constitute a counterweight or counterbalance to.

伯特伦编辑

• After loading the pawls are tripped, and the greater gravity of the counterweight raises the gun to firing position again. Edward W. Byrn. 十九世纪发明进展.
• In this the hoisting cables from which the car is suspended have at the other end a counterweight and pass around driving sheaves in place of a drum. 佚名. 神奇的知识之书.
• This cylindrical counterweight is seen raised on the left of Fig. 272. Edward W. Byrn. 十九世纪发明进展.
• One of these is placed in the hoistway under the car and one under the counterweight, they being capable of bringing a car to rest from full speed without discomfort to those in the car. 佚名. 神奇的知识之书.
• When the gun is fired the recoil raises the counterweight, and the gun descends and is locked in its lower position. Edward W. Byrn. 十九世纪发明进展.
• There has been a violent stress in one direction, and it needs a counterweight. 查尔斯·狄更斯. 双城记.
• Weight of the porter-bar and chuck which hold the plate for forging is 125,000 pounds, exclusive of counterweights used. 佚名. 神奇的知识之书.

校对:威拉德