Through the failure analysis of connecting bolt of down rod, it points out that it is not correct to put the thinner nut outer side if the double nut anti-loose method is adopted.

通过对游梁式抽油机对接式连杆下接头连接螺栓的失效分析，指出了采用双螺母防松时，将薄型螺母放置在外侧是不恰当的。

youdao

With the slow-burning carbs from the oatmeal coupled with the healthy fats from the nut butter, these double as a calorie-dense option that's great for naturally thin men looking to build muscle.

在燕麦中含有缓慢释放的碳水化合物，在坚果酱里面含有健康脂肪，这使得这些使食物中的卡路里翻倍，对于想要增肌的天生瘦子是一个非常不错的选择。

youdao

Shaping of double curved face lamella has been hard nut to crack in manufacture trial work.

在汽车车身试制领域，双曲面薄板零件的成形一直是试制工作的难题。

youdao

The codes will be hidden inside the wrappers of any one of ten of Cadbury's leading chocolate bars including Crunchie, Time Out, Dairy Milk, Caramel, Boost, Wispa, Giant Buttons, Whole Nut, Fruit and Nut and Double Decker.

BBC: Eat yourself a win