ballcock是什么意思

双语用例

• This is identical in principle to the ballcock valve.

• Dispensing may be regulated by a mechanical float device similar to a ballcock in the tank of a flush toilet.

• He did, however, do much to increase the popularity of the toilet, and developed some important related inventions, such as the ballcock.

• He was, however, in the forefront of the industry in the late 19th century, and held nine patents, three of them for water closet improvements such as the floating ballcock.

• The tenants try to stop it by bending the arm of the ballcock: but that means that the cistern only half fills and the lavatory does not flush properly.