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It is proved that a left R-module P is pure projective if and only if for any pure epimorphism E→M→0, where E is pure injective, Hom→Hom→0 is exact.

证明了左R-模P是纯投射的当且仅当对任意纯满射E→M→0，其中E是纯内射的，Hom→Hom→0是正合的。

Additionally, the E-Class Coupe will eventually be joined by other variants of the E-Class, including a Cabrio model and an Estate wagon, both of which are expected to appear at September's Frankfurt Motor Show.

此外， E级轿车将最终加入了其他变种的E级，其中包括1敞篷模型和地产车，这两个产品预计出现在9月的法兰克福汽车展。

Part of the overall safety relating to the EUC and the EUC control system which depends on the correct functioning of the E/E/PE safety-related systems, other technology safety-related systems and external risk reduction facilities

与EUC和EUC控制系统有关的整体安全的组成部分，它取决于E/E/PE安全相关系统，其它技术安全相关系统和外部风险降低设施功能的正确行使。

Function to be implemented by an E/E/PE safety-related system, other technology safety-related system or external risk reduction facilities, which is intended to achieve or maintain a safe state for the EUC, in respect of a specific hazardous event

针对特定的危险事件，为达到或保持EUC的安全状态，由E/E/PE安全相关系统、其它技术安全相关系统或外部风险降低设施实现的功能

Since the High-Lying Vibrational excited levels and dissociate behavior of gas diatomic molecules: H2, O2, N2 and CO are very important in actual studies and applications, using the algebra method and the algebra energy method to obtained full vibrational energy spectra {E} and molecular dissociation energies are base on limited experiment energy level {E} in this paper. The study result has provided the important high vibrational excited state energy level and the reliable dissociation energy data for the research partial dissociating gas physics and the chemical property.

鉴于气体双原子分子H2、O2、N2和CO的高振动激发态能级和离解行为在实际研究中的重要性，本文应用代数方法和代数能量方法，以部分气体双原子分子有限的实验能级［E］为基础，获得了H2-X1Σ、O2-A^3Σ、O2-c1Σ、N2-X1Σ和CO-X^1Σ共5个电子态的完全振动能谱｛E｝及其分子的离解能，为研究部分离解气体的物理和化学性质提供了重要的高振动激发态能级和可幸的离解能数据。

Using scientific notation, the exponent is indicated either by E or e.

使用科学计数法时，指数用 E 或者 e 表示。

Nanjing Ju Yung: Deep Sea Fish Oil, Lecithin, Calcium D-dimensional soft capsules, garlic oil soft capsule, pineal hormone, Super Placenta capsules, soy isoflavones, ovarian capsule, soft capsule Rose Fairy, Beauty Pose capsules, Aloe Soft Capsule, C + E, vitamin C tablets fruity, natural-dimensional E, multi-dimensional Tablets, multi-dimensional Tablets, Jiannao hormone (2:1), Colostrum tablets, bovine colostrum calcium, liver and gall bladder retaining Capsule, feet on the 1st, Mingmu capsule, lyophilized royal jelly powder, propolis soft capsule, pollen, such as Ganoderma lucidum.

南京巨榕：深海鱼油、卵磷脂、钙维D软胶囊、大蒜油软胶囊、松果体素、超级羊胎素胶囊、大豆异黄酮、卵巢宝胶囊、玫瑰仙子软胶囊、美之姿胶囊、芦荟软胶囊、C+E、维生素C果味片、天然维E、多维素片、多维素片、健脑素（2：1）、牛初乳片、牛初乳钙片、强肝护胆宝胶囊、雄风一号、明目宝胶囊、蜂王浆冻干粉、蜂胶软胶囊、花粉灵芝等。

Analysis of the strain field discovers that the principal compressive and the principal tensile strain rates in the epicenter area are -30.840×10-9/a and 13.956×10-9/a respectively before earthquake, and the principal compressive strain axis is in a direction of N105.4°E which is consistent with the average direction at N107.5°E of the principal compressive stress axis from focal mechanism result.

应变场分析发现，震前震中区的主压与主张应变率分别为-30.840×10-9/a与13.956×10-9/a，主压应变轴N105.4°E与震源机制解得到的主压应力轴的方向N103°E一致。

You can almost always determine the leads of a bipolar transistor with an ohm meter. b-e and b-c junctions will measure like a diode with the b-c junction reading slightly lower than the b-e junction when forward biased.

你几乎总是可以用欧姆表来判断双极性晶体管的脚位。b-e结和b-c结将像二级管那样测量，而且正向偏置时，b-c结的读数稍微比b-e结低一点。

When E is a function field, this result is muchbetter than the existed result for number field E.

当E为函数域时，此结果比现有的E为数域的结果好很多。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。