1·Albert is seen being struck on the head by a boy in a purple shirt who hits him from behind with a long wooden board, thought to be a part of a railway sleeper.
看到阿尔伯特被一个穿紫色衬衫的男孩拿着像是枕木的一部分的长木板从他的后面击中脑部。
2·We consider each sleeper as an abutment of opposite forces, rails on horizontal sleepers as a mock dispersed elastic ground beam model and trains as moving load on beams.
将每根枕木考虑成一个支座反力，将横向枕木支承的钢轨模拟成离散的弹性地基梁模型，将列车考虑成一个作用在梁上的移动荷载。
3·All non-manufactured wood packaging material to be used to carry, pack, pad and support, and reinforce the goods, such as wood case, crate, pallet, frame, pal, wood pole, wedge, sleeper and pad.
本办法所称木质包装是指用于承载、包装、铺垫、支撑、加固货物的木质材料，如木板箱、木条箱、木托盘、木轴、木楔、垫木、枕木、衬木，等。