1. They have so far restricted their military support to small arms, antitank weapons, mortar, and ammunition. 他们一直把军事援助限于小型武器，反坦克武器，迫击炮以及弹药。
2. Decoration and protection of the concrete, cement mortar, mixed mortar, brick and stone surfaces various buildings. 各种建筑物的混凝土、水泥砂浆、混合砂浆、以及砖石表面的装饰与保护。
3. Admixtures for concrete, mortar and grout. Test methods. Part 12 : determination of the alkali content of admixtures. 混凝土添加剂。砖石和灰浆。试验方法。第12部分：添加剂碱性含量的测定。
英英解释
n.
1. a muzzle-loading high-angle gun with a short barrel that fires shells at high elevations for a short
2. used as a bond in masonry or for covering a wall
3. a bowl-shaped vessel in which substances can be ground and mixed with a pestle v.
1. plaster with mortar
