本文研究了一种新型行星传动 —— 滚锥齿超环面行星蜗杆传动.The paper researches a new type mechanical transmission mechanism - the Rolling cone - type toroidal drive.'环'.''面,环形圆纹曲面圆圈形成的超''.'环'.''面; 具...
Virgil was the greatest of Latin poets and wrote the great epic, the Aeneid.维吉尔是最伟大的拉丁诗人,著有伟大的史诗《埃涅阿斯纪》.International PEN ( International Association of Poets, Playwrights, Editors, Essayists and Novelists )国际笔会 ( 国际诗人, ...
The taxman caught up with him and demanded £7,000 in unpaid taxes.税收人员查到了他，要求他把未缴纳的7,000英镑税款交上。Even unpaid work for charity is better than nothing.即便是给慈善机构做义工也比什么都不做要好。Doctors work excessive unpaid overtime.医生过度加班却无报酬....
They just clung to each other like two lost souls.他们两个孤苦无依的人就那么互相依偎着。Prayers were said for souls in Purgatory.祷告词是为炼狱中的灵魂念的。The ship sank with 200 souls.那艘载着二百人的船沉没了....