§3.5距离保护的振荡闭锁（Power Swing Blocking of Distance Protection）环境成本§3.5.1振荡闭锁的概念（Concept of Power Swing Blocking）并联运行的电力系统或发电厂失去同步的现象，称为电力系统的振荡（Power Swing）。电力系统振荡时，系统两侧等效电动势间的夹角在范围内作周期性变化，从而使系统中各点的电压、线路电流
1.1In recent years the performance requirements for process plant have become increasingly difficult to satisfy. Stronger competition, tougher (更加严苛的) environmental and safety regulations (法规), and ra
筛子游戏normal是什么意思 normal中文-短语-例句-真人教学视频normal是什么意思 normal中文-短语-例句-真人教学视频Her height and weight are normal for her age.她的身高和体重对于她的年龄来说是正常的。normal【释义】英 ['nɔːml] 美 ['nɔːrml] adj.正常的;正规的;精神健全的n.
处方常用拉丁文缩写中文对照表缩写字拉丁文ignored中文a.d.a.h.a.a.p.a.u.agitAbs.febr.Ac.;acid.Ad.;addAd Ad us.int.Alt.die.(a.d.)Amp.Abten.Aq.Aq.bullAq.Ap.dest.Ap.ferv.Ap.font.Ap.steril.b.
VOA慢速英语：如何改善你的英语发音？Improve Your Pronunciation By 'Shadowing' OthersMany English learners can improve their pronunciation by listening carefully to native English speakers and trying to match the up-an
01/2008:209412.9.41. Friability of granules and spheroids 2.9.41.颗粒和微丸的脆碎度2.9.41. Friability of granules and spheroidsbelieve意思This chapter describes 2 methods for determination of the friability of g
how come 万方数据第１０期林梓荣等：脉动热管技术研究进展电影英语（ａ）闭合回路结构（ｂ）开放同路结构（ｃ）带单向阀的回路结构图１脉动热管基本结构质，弯头一端为加热段，另一端为冷凝段，在中间则根据需要布置绝热段。private equity其运行机理为：工质在一个蛇形密闭的真空空间里，以低于常压蒸发温度受热蒸发产生气泡，气泡迅速膨胀和升压，形成蒸发端，推动工质流向低温冷凝段，气泡在冷凝段冷凝
01/2008:209412.9.41. Friability of granules and spheroids 2.9.41.颗粒和微丸的脆碎度2.9.41. Friability of granules and spheroidsThis chapter describes 2 methods for determination of the friability of granules a
