The only problem was, nobody at the station had an arm small enough to actually reach in through the two-and-a-half inch opening and pack grease around the bearing.

可是执行这个办法的最后的一个困难在于站里没有一个人的手臂小到可以伸进这个只有2.5英寸的开孔，他们无法把油脂涂抹到轴承的四周。

youdao

Hiking guidelines say that the weight of a pack should correspond to body size, with smaller individuals bearing lighter burdens.

徒步旅行指南说道背包的负重应与自身体型相对应，身材矮小的人就应该背更轻负重。

youdao

Each model is supplied with a multi-use nylon sheath (not shown) which can be worn on a belt, pack, or load bearing equipment - or just about anywhere the Operator or Mini Operator is needed.

每个模型是供应多用尼龙护套(未显示)，可穿在皮带上，包装，或装入轴承设备-或在任何地方经营者或小型运营商是必要的。

youdao

The only problem was, nobody at the station had an arm small enough to actually reach in through the two-and-a-half inch opening and pack grease around the bearing.

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