This article, through summarizing the progresses in the evapotranspiration (ET0) methods research, analyzes representative ET0 computation methods emphasized on three periods of the world: modificative Penman, Penman-Monteith and standard ASCE-PM. We take 20th century 90's last stages and 21th century initial period's world newest 19 experimental achievements with lysimeter's actual value rating ET0 value as the foundations, analyzing general usage of the ET0 computational method regarding the different climatic conditions. Although the effect of PM method application is desirable in many areas, many local effects are still unsatisfactory; the method MP and so on are more suitable in part of areas; the PM and MP method are not popular, the special attention must be paid to the standard ASCE-PM method. In brief, these kinds of half theory (semi-empirical) methods only suit in certain areas.

通過對(duì)ET0計(jì)算公式研究進(jìn)展的總結(jié)免费一级A毛片在线播放一级，分析了在世界上三個(gè)時(shí)期比較有代表性的計(jì)算蒸發(fā)騰發(fā)量(ET0)的主要公式：修正Penman公式欧美三级A、Penman-Monteith公式及標(biāo)準(zhǔn)ASCE-PM公式亚洲中文国内精品福；以20世紀(jì)90年代末期和21世紀(jì)初期世界上最新的19個(gè)用Lysimeter實(shí)驗(yàn)值率定ET0計(jì)算值的實(shí)驗(yàn)成果為基礎(chǔ)，對(duì)于不同氣候條件下ET0計(jì)算方法的普適性分析評(píng)估認(rèn)為：雖PM公式應(yīng)用效果較好的地區(qū)較多殴美日韩无码人妻专区，但也有不少地區(qū)效果欠佳人人看的三级黄色网站，MP等公式在一部分地區(qū)較好，PM與MP公式并非普適性的免费的美女色视频网站A，要特別關(guān)注標(biāo)準(zhǔn)ASCE-PM公式黄色视频在线观看aaaa级，總之，這類半理論公式均有一定的地區(qū)性亚洲欧美国产色图。

Finally, it shows that R is von Neumann regular ring if and only if every right .R-module is right pm-injective if and only if every right principal right ideal of R is right pm-injective if and only if every essential right ideal of R is right pm-injective. Furthermore, some good properties are obtained.

最后，得到R是von Neumann正則環(huán)當(dāng)且僅當(dāng)每個(gè)右R-模是右pm-內(nèi)射當(dāng)且僅當(dāng)R的每個(gè)主右理想是右pm-內(nèi)射當(dāng)且僅當(dāng)R的每個(gè)本質(zhì)右理想是右pm-內(nèi)射99久久播放视频，以及其他諸多好的性質(zhì)日韩三级中文字幕。

The copper atom is in a planar coordination site of [N_2O_2] and it devites from the mean plane by only 0.80 pm. Byπ-πstacking interactions, a alabastrine structure was obtained.(2)Schiff-base complex [Cu(H_2O)]·H_2O, where H3GS is the 3-carboxyl -salicylidene glycine, was synthesized and characterized by elemental analysis, IR spectra and single-crystal analysis. The crystal belongs to monoclinic system, space group P2(1)/c, a=848.46(3)pm, b=681.54(3)pm, c=1967.16(8)pm,β=95.8210(10)°, Z=4, R_1=0.0279, wR_2=0.0724. The copper atom is in a square-pyramidal field with the base

結(jié)果表明該晶系屬單斜晶系，空間群P2(1)/c99色免费看视频，晶胞參數(shù)：a=848.46(3)pm国产精品久久久久精品三级一区，b=681.54(3)pm，c=1967.16(8)pm无码观看黄三级网站，α=90°www熟女，β=95.8210(10)°，γ=90°免费观看黃色A片一级视频快进，Z=4免费一级无码婬片AA片高潮喷水，R_1=0.0279，wR_2=0.0724人人干操操操插，Cu原子位于輕微變形的四方錐場(chǎng)底心免费在线看欧美三级片，底面被氮原子、酚氧原子色视频网站观看、甘氨酸羧基的一個(gè)氧原子和一個(gè)水分子氧原子占據(jù)欧美国产日韩激情视频，而甘氨酸羧基的另一個(gè)氧原子占據(jù)相鄰分子的錐頂，因而形成一維鏈狀結(jié)構(gòu)国产伦频网；合成了單核雙聚配合物Na_2[Cu_2_2]·2H_2O 国产日韩入口一区二区三区，銅三核配合物Cu_3_2·5H_2O和銅鋅異三核配合物ZnCu_2_2·5H_2O，并用元素分析精品久久久一级毛片，IR光譜日本亚洲欧美日韩工程，電子光譜和磁化率測(cè)定對(duì)配合物的組

PM:Past Master：前會(huì)長(zhǎng)

PM:Pulse Modulation 脈波調(diào)制. | PM:Past Master 前會(huì)長(zhǎng). | PM:Provost Marshal 憲兵司令.

PM Phase Modulation：相位調(diào)制

PM Performance Monitoring 性能監(jiān)控 | PM Phase Modulation 相位調(diào)制 | PM Photo Multiplier 光倍增器

PM Physical Medicine：物理醫(yī)學(xué)

PM Photomultiplier 光電倍增管 | PM Physical Medicine 物理醫(yī)學(xué) | PM Physiological Medium 生理介質(zhì)