The letter is on six sheets of foolscap.信写在6张大页纸上.He was still rumbling discontentedly when Pike returned bearing a folder of foolscap sheets.他正在不满地小声嘟囔时,派克抱着一叠印刷纸回来了....
能够杜绝危险废物渗析液下渗污染地下水,同时又避免了危险废物污染环境卫生.It will prevent ground water from hazardous waste leachate pollution and avoid environmental pollution simultaneously....
表面贴装开关二极管. 75五,反向电压整流电流250毫安.Surface mount switching diode . Reverse voltage 75 V. Rectified current 250 mA.目前沉船的NPN开路集电极晶体管, 单通道二五〇毫安最高.Current sinking NPN open collector Transistor, Single channel, 250 mA max.低内阻原理也同样适...
Mechanization happened years ago on the farms of Islay.数年前，艾莱的农场就实现了机械化。In the course of the evening he gave me chapter and verse on the mosses of the Islay peat bogs.整个晚上，他向我详细讲述艾莱岛泥炭沼泽地上的各种青苔。The book contains a great ...