小小沉醉
PE：聚乙烯（polyethylene ，简称PE）的缩写。
聚乙烯（polyethylene ，简称PE）是乙烯经聚合制得的一种热塑性树脂。
在工业上，也包括乙烯与少量α-烯烃的共聚物。聚乙烯无臭，无毒，手感似蜡，具有优良的耐低温性能（最低使用温度可达-100~-70°C），化学稳定性好，能耐大多数酸碱的侵蚀（不耐具有氧化性质的酸）。常温下不溶于一般溶剂，吸水性小，电绝缘性优良。
2017年10月27日，世界卫生组织国际癌症研究机构公布的致癌物清单初步整理参考，聚乙烯在3类致癌物清单中。
扩展资料：
聚乙烯化学分类：
聚乙烯依聚合方法、分子量高低、链结构之不同，分高密度聚乙烯、低密度聚乙烯及线性低密度聚乙烯。
1，低密度聚乙烯(LOW DENSITY POLYETHYLENE，LDPE)俗称高压聚乙烯，因密度较低，材质最软，主要用在塑胶袋、农业用膜等。
2，高密度聚乙烯(HIGH DENSITY POLYETHYLENE，HDPE)俗称低压聚乙烯，与LDPE及LLDPE相较，有较高之耐温、耐油性、耐蒸汽渗透性及抗环境应力开裂性，此外电绝缘性和抗冲击性及耐寒性能很好，主要应用于吹塑、注塑等领域。
3，线型低密度聚乙烯(LINEAR LOW DENSITY POLYETHYLENE，LLDPE)，则是乙烯与少量高级 -烯烃在催化剂存在下聚合而成之共聚物。
LLDPE外观与LDPE相似，透明性较差些，惟表面光泽好，具有低温韧性、高模量、抗弯曲和耐应力开裂性，低温下抗冲击强度较佳等优点。
LLDPE应用领域几乎已渗透到所有LDPE市场。现阶段LLDPE和HDPE处于生命周期的成长阶段；LDPE则在1980代末逐渐进入发展成熟期，世界上已少有LDPE设备投产。
聚乙烯可用挤出、注射、模塑、吹塑和熔纺等方法成型，广泛应用于工业、农业、包装及日常工业中。
在中国应用相当广泛，薄膜是其最大的用户，约消耗低密度聚乙烯77%，高密度聚乙烯的18%，另外，注塑制品、电线电缆、中空制品等都在其消费结构中占有较大的比例，在塑料工业中占有举足轻重的地位。
参考资料：百度百科----聚乙烯
约翰尼德斌
PE Press Enterprise (newspaper) ****** PE Peru ****** PE Physical Education ****** PE Professional Engineer (National Council of Examiners for Engineering and Surveying) ****** PE Professional Engineer ****** PE Port Elizabeth (South Africa) ****** PE Provider Edge (IETF RFC 2547) ****** PE Practice Expense (Medicare/Medicaid payments) ****** PE Private Equity ****** PE Portable Executable ****** PE Project Engineer ****** PE Program Element (Army financial) ****** PE Premature Ejaculation (male condition) ****** PE Public Enemy ****** PE Potential Energy ****** PE Prince Edward Island (Canada) ****** PE Professional Edition (usually describing software) ****** PE Por Ejemplo (Spanish: For Example) ****** PE Pernambuco (Brazil) ****** PE Personal Edition ****** PE Physical Examination ****** PE Processing Element ****** PE Public Education ****** PE Polyethylene ****** PE Por Exemplo (Portuguese: For Example) ****** PE Price to Earnings (ratio) ****** PE Performance Evaluation ****** PE Plain Edge ****** PE Planet Earth ****** PE Platinum Edition ****** PE Process Equipment ****** PE Peterborough (postcode, United Kingdom) ****** PE Pellet ****** PE Per Esempio (Italian: For Example) ****** PE Preliminary Engineering ****** PE Photo-Etched ****** PE Parlamento Europeo (Italian: European Parliament) ****** PE Principal Engineer ****** PE Permanent Establishment ****** PE Process Engineer ****** Pe Perjantai (Finnish: Friday) ****** PE Program Evaluation ****** PE Philadelphia Eagles ****** PE Pulmonary Embolism ****** PE Production Engineering ***** PE Professional Ethics ***** PE Phenylephrine ***** PE Principles and Practice of Engineering ***** PE Professeur des Écoles (French: School Teacher) ***** PE Pulmonary Edema ***** PE Parasite Eve (video game) ***** PE Plant and Equipment ***** PE personal effects (US DoD) ***** PE Parse Error ***** PE Penis Erection ***** PE Preinstallation Environment (Microsoft Windows) ***** PE Personalentwicklung ***** PE Pleural Effusion (excess pleural cavity fluid) ***** PE Plans Examiner ***** PE Product Engineer ***** PE Protestant Episcopal ***** PE Physical Exertion ***** PE Primavera Estate (Fashion, Italy) ***** PE Pericardial Effusion ***** PE Pelvic Exam ***** PE Petroleum Engineer ***** PE Preliminary Evaluation (EPA) ***** PE Point Estimate ***** PE Power Engineer ***** PE Peripheral Equipment ***** PE Pharmacoeconomics (cost management analytical tool) ***** PE Processing Engine ***** PE Parity Error ***** PE Pescara, Abruzzo (Italian province) ***** PE Probability of Error ***** PE Prostate Enlargement ***** PE Project Executive ***** PE Plasma Exchange ***** PE Protective Earth (electrical units safety measure) ***** PE Periodic Inspection **** PE Performance Efficiency **** PE Projet d'Établissement (French: School Project) **** PE Project Entropia (game) **** PE Plain End **** PE Peer Educators **** PE Phosphoethanolamine **** PE Presumptive Eligibility **** PE Playboy Enterprises **** PE Pilot Error (aircraft) **** PE Probable Error **** PE Punctuated Equilibrium **** PE Peclet Number **** PE Post Entry **** PE Physical Entity **** PE Pancreatic Enzyme **** PE Practical Exercise **** PE Permanent Employee **** PE Population Equivalent **** PE Pacific Electric Railway **** PE Phase Encoding **** PE Project Estimator **** PE peace enforcement (US DoD) **** PE Problem of Evil (philosophy) **** PE Printer's Error **** PE Parabolic Equation **** PE Processor Elements **** PE Pouvoir Executif (French) **** PE Protein Explorer **** PE Program Engineer **** PE Particulate Emission **** PE Partial Evaluation (computer languages) **** PE Procurement Executive **** PE Precision Engagement (time sensitive targeting) **** PE Private Exchange **** PE Primitive Equation **** PE Policy Element **** PE Parallax Error **** PE Port Engineer **** PE Peking Express **** PE Push Enteroscopy **** PE Premier Executive **** PE Permian Extinction (geological event) **** PE Probability of Exceedance (earthquake **** PE Probability of Exceedance (seismic risk analysis) *** PE Propulsion Equipment *** PE Protocol Elements (ITU-T) *** PE Peace Establishment *** PE Penerase (Hyper Logo command) *** PE Permanent Echo (radar) *** PE Planning Estimate *** PE Project Ego (game) *** PE Preceding Event *** PE peacetime establishment (US DoD) *** PE Potential Excess *** PE Probability of Bit Error *** PE Pipeline Execution *** PE Preço de Exercício (Portuguese: Exercise Price) *** PE Potential Earth (earth Ground point in an electrical circuit) *** PE Parasite Energy *** PE Phycoerytherin *** PE Pressure Equalizer *** PE Pure Enantiomer (crystals) *** PE Protective Entrance *** PE PTF in Error *** PE Pair Equipment *** PE Potential Electrode ** PE Polychromatic Erythroblast ** PE Probability Equivalence ** PE Precision Echo ** PE Peoples' Elbow (wrestling finishing move) ** PE Phase Estimator ** PE Perceptual Energy ** PE Pyetlyakov (Soviet aircraft designer) ** PE Permitted Explosive (mining) ** PE Preferred Elite (insurance) ** PE Preliminary Exploitation ** PE Plant Emulator ** PE Physical Inventory, Ending ** PE PAMRI Emulator HWCI ** PE Parity Even/Enable ** PE Pedal Exungulation (the clipping of toenails) ** PE Proving-Period Emergency * PE Pervasive Expression * PE Progressiewe Enkefalopatie * PE Pin Electronics (various companies)
sugar糖果君
PE投资即Private Equity，简称PE。 国内通常把PE翻译成狭义的股权投资，即“私募股权投资”，是指投资于非上市股权，或者上市公司非公开交易股权的一种投资方式
evilevilevil
PE全称Price Earnings Ratio，也称“本益比”、“股价收益比率”或“市价盈利比率（简称市盈率）”。
市盈率是指股票价格除以每股收益(每股收益,EPS)的比率。或以公司市值除以年度股东应占溢利。
计算时，股价通常取最新收盘价，而EPS方面，若按已公布的上年度EPS计算，称为历史市盈率（historical P/E）；计算预估市盈率所用的EPS预估值；
一般采用市场平均预估（consensus estimates），即追踪公司业绩的机构收集多位分析师的预测所得到的预估平均值或中值。何谓合理的市盈率没有一定的准则。
市盈率是某种股票每股市价与每股盈利的比率。市场广泛谈及市盈率通常指的是静态市盈率，通常用来作为比较不同价格的股票是否被高估或者低估的指标。用市盈率衡量一家公司股票的质地时，并非总是准确的。
一般认为，如果一家公司股票的市盈率过高，那么该股票的价格具有泡沫，价值被高估。当一家公司增长迅速以及未来的业绩增长非常看好时，利用市盈率比较不同股票的投资价值时，这些股票必须属于同一个行业，因为此时公司的每股收益比较接近，相互比较才有效。
市盈率是最常用来评估股价水平是否合理的指标之一，是很具参考价值的股市指针，一方面，投资者亦往往不认为严格按照会计准则计算得出的盈利数字真实反映公司在持续经营基础上的获利能力，因此，分析师往往自行对公司正式公布的净利加以调整。
扩展资料
市盈率所反映的是公司按有关折现率计算的盈利能力的现值，它的数学表达是P/E。根据市盈率计算企业价值的公式应为：
企业价值=（P/E）目标企业的可保持收益
企业的可保持收益是指目标公司并购（交易）以后继续经营所取得的净收益，它一般是以目标公司留存的资产为基础来计算取得的。
每股税后利润的计算通常有两种方法：
1、完全摊薄法：用发行当年预测全部税后利润除以发行后总股本数，直接得出每股税后利润。
2、加权平均法：计算公式如下：每股（年）税后利润=发行当年预测全部税后利润÷发行当年加权平均总股本数=发行当年预测全部税后利润÷[发行前总股本数+本次发行股本数×（12－发行月数）/12]
参考资料：百度百科-市盈率
参考资料：百度百科-市盈率法
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