grub machine的用法和樣例：
例句
- Rile excavation machine industry guided by her has become king-post industry of company, and made an indelible contribution for prosperity of company.
她所率領(lǐng)的日立挖掘機產(chǎn)業(yè)成為公司的支柱產(chǎn)業(yè)，為公司的蒸蒸日上做出了不可磨滅的貢獻。 - When the backhoe is permanently attached, the machine usually has a seat that can swivel to the rear to face the hoe controls.
當挖掘機被固定上以后，通常上面安裝一個(gè)可旋轉的座椅，操作者工作時(shí)可以面對被操作對象。
