He swallowed painfully, sending a juddering spasm the length of his body.
他痛苦地咽了口口水,全身都在颤抖。
The doors closed, the lift juddered upwards again and the woman's voice said: " Level Six, Department of Magical Transport, incorporating the Floo Network Authority, Broom Regulatory Control, Portkey Office and Apparation Test Centre."
了,电梯微微晃动着继续
升,那女人的声音宣布道:“第六层,魔法交通司,包含飞路网管理局、飞天扫帚管理控制局、
钥匙办公室和幻影显形测试中心。”
In 1921, while working for the General Motors Research Corporation in Dayton, Ohio, he investigated a compound called tetraethyl lead (also known, confusingly, as lead tetraethyl), and discovered that it significantly reduced the juddering condition known as engine knock.
1921年,他在位于俄亥俄州代顿的通用汽车研究公司工作期间,对一种名叫四乙铅的化合物作了研究,发现它能大大减少震动现象,即所谓的发动机爆震。