sectional operation的用法和樣例：
例句
- The sectional cutting method is effectively applied to longhole raising but less applied to tunnel heading.
分段掏槽法已在深孔爆破掘進(jìn)天井運用中取得一定效果，而在平巷掘進(jìn)中運用卻未予以足夠的重視和研究。 - The short tailstock and the sectional rear light also command looks like the movement.
短小的車(chē)尾和分段式尾燈也令看起來(lái)很運動(dòng)。
