longer barrel

较长的枪管

重点词汇

barrel 一桶 ; 桶(石油计量单位，相当于120到159升) ; 枪管

The flame temperature is lower, thus giving a longer barrel life.

火焰温度较低，因而可使炮管寿命较长。

The weapon features a slightly longer barrel than that of the standard assault rifle and a75-round cartridge drum.

武器以一个稍微地较长超过标准的突击步枪的枪管和一个75发弹鼓为特点

While they ate, the winemaker, Zhou Shu Zhen, discussed the local climate and explained how a longer barrel aging added depth to her reds.

席间酿酒师周淑珍谈起了当地的气候条件，向他们解释，较长的橡木桶陈化期增加了她所酿造的红酒的厚度。