State the DFX of the SMT , DFM Conception and the key technologic points.本文阐述了表面贴装领域中的DFX思想 、 DFM概念和研究内容、DFM软件 系统架构及其实现的关键技术点.Just as in other industry, DFM of SMT is also very important.就如在其它行业中一样, DFM在表面贴装领域中也是同样适用并且非常...
He is seeded second, behind Brad Beven.他被列为二号种子选手，位居布拉德·贝文之后。They seeded the field with wheat.他们在这块地里种下了小麦.In the UEFA Cup the top 16 sides are seeded for the first round.在欧洲联盟杯比赛中，排名前16位的球队已按位次进入首轮。...
Bronchospasm -- Bronchoconstriction, or the sudden narrowing of the smaller airways, of spasmodic nature.支气管痉挛 -- 支气管狭窄, 或突然缩小, 呈痉挛的症状.The lumen is large, without any narrowing atheromatous plaque.腔较大, 不伴有动脉粥样硬化斑块引起的管腔狭窄...
The subway was covered in graffiti.过街地道里涂满了乱七八糟的图画和文字。There's no vandalism, no graffiti, no rubbish left lying about.没有损害公共财物的行为，也没有涂鸦和随处丢弃的垃圾。The maintenance programme will additionally seek to keep the sites free ...
约翰尼和盖伊是英国最了不起的、还未被公众认可的流行歌曲创作者。Johnny and Guy are the greatest unacknowledged pop songwriters in Britain.沃尔特∙迪斯尼—米老鼠的创作者Walt Disney, the creator of Mickey Mouse这部电影给人一种创作者与他的素材反常地保持疏离的感觉。The film has the feel of a man cu...
Floristics is the study of floras, including the preparation of Floras.植物区系学是研究植物区系的一门学科, 其中包括编写植物志.We shall appreciate this difficulty more clearly, by looking to certain existing faunas and floras.通过观察某些现存的动物群和植物群,我们就能...