pointing rule

• 勾缝尺

pointing rule的用法和样例：

例句

1. Cement pointing is harder than soft brick or stone.
   在混凝土上勾缝比在软性砖或石头上更难。
2. We have basically finished the construction of this house and just need to do the final step of pointing.
   这座房子基本已经盖好，就是差最后勾缝了。