maximum polished rod load

例句：

1. 1.The machine's maximum polished rod load is 500 kilograms.
   这台机器的最大精磨杆负荷是500公斤。
2. 2. The engineer carefully calculated the maximum polished rod load to ensure safety.
   工程师仔细计算了最大精磨杆负荷以确保安全。
3. 3. The manufacturer has increased the maximum polished rod load to improve efficiency.
   制造商已经提高了最大精磨杆负荷以提高效率。