Complicated system ; space metric tensor ; natural base ; physical base ; non-Cartesian tensor ; Cartesian tensor ; helical-Cartesian coordinate system ; parabolic cylindrical coordinate system

復雜系統(tǒng)一级女人裸体A片免费；空間度量張量影音资源在线观看；自然基物理基久久网性爱!；笛卡兒張量www.久久这里只有精品视频；非笛卡兒；張量免费一级黄；螺旋線——笛卡兒坐標系久久兔费黄色视频；拋物柱面坐標系

Six experimental stages were designed in our procedure, those are:(1) metabolite recovery and tested sample preparation: the metabolites were recovered by Amberlite XAD-2 absorption, followed by MeOH elution and solvent concentration;(2) antioxidant detection and strain selection: samples were quantitatively analyzed by the inhibition effects on formation of lipid peroxides and TBARS to screen the strains able to produce antioxidants. According to the established screening methods, we chose out a strain of actinomycetes, designed as AMBL-029C;(3) antioxidant purification: the fermentation broth was recovered by a series of separation techniques including centrifugation, Amberlite XAD-2 absorption, followed by MeOH elution and a successive TLC purification. The resulting primary purified compound [temperately designed as AMBL-029C-TS] was further analyzed by HPLC to monitor its purity;(4) physical-chemical characteristics: judging from the acid-base fractionation experiments, and the pH and temperature stability tests, the compound was deduced to be a acidic compound with the properties of low polarity and highly pH and temperature stable;(5) mechanism of the antioxidant: in comparison with some other known antioxidants, TS was subjected to investigate its antioxidant mechanism, together with BHT,-tocopherol, as well as two streptomyces metabolites, homogentisic acid and -phenylpyruvic acid, which were previously isolated as the natural antioxidants in our laboratory.

針對本實驗目的，我們設計了以下的實驗步驟﹔（1）二次代謝物回收及檢測樣本處理：我們將發(fā)酵所得的培養(yǎng)上清液亚洲男女精品视频在线看，利用疏水吸附性樹酯Amberlite XAD-2吸附回收亚洲乱码一区二区在线欧美，并以甲醇溶離及真空減壓濃縮脫水等方式處理，以取得提供抗氧化活性篩選之檢測樣本粗暴大黑鳮巴视频欧美A；（2）抗氧化活性檢測及菌種篩選：以「過氧化脂質」和「硫丙二醯尿」的生成量進行定性定量分析以作為抗氧化物質生產菌篩選之用久久偷拍网；經此篩選程序，我們選獲了具有抗氧化物質高生產力的菌株AV无码国产精品一区，命名為AMBL-029C99精品r视频在线观看；（3）抗氧化物質的分離純化：針對生產菌株的發(fā)酵回收處理液，以矽膠薄層色層分離法經物質層析純化后国产洗澡网站，并以高效能液相層析法(High performance liquid chromatography人人插人人摸人人色；HPLC)分析物質可得一初級純化物質，命名為AMBL-029C-TS人人插人人操人人奸；（4）抗氧化物質的物理化學性質分析：由酸堿轉溶（acid-base fractionation）實驗得知日韩欧美黄色视频一区二区，此抗氧化物質屬於中低極性的強酸性物質，對溫度（37℃-100℃）及酸堿度（pH3.0-13.0）均表現(xiàn)出高穩(wěn)定性黄页黄色网站；（5）在抗氧化機制探討方面日韩午夜电影717无码，我們針對數(shù)種不同的抗氧化機制進行探討，即： 1欧美老妇XXXX。

The company's main product of natural base oil, rosemary oil and other natural essential oils in a variety of base oil can be 12,000 tons in production and marketing, rosemary oil, more than 200 tons, has become the domestic cosmetics, medicines, food spices and raw materials import and export enterprises 1, but also Hong Kong's major natural fragrance oil, base oil import and export companies.

公司主營產品天然基礎油国产精品亚欧美一区二区、迷迭香油及其他各種天然香料油中基礎油可年產銷12000噸，迷迭香油200多噸最新免费黄网站，已成為國內化妝品日韩无码操逼，藥品，食品香料及原料的進出口企業(yè)之一ekwei.com，也是香港主要的天然香料精油欧美一区二区二区、基礎油進出口公司。

base of natural logarithms：自然對數(shù)的底

base of logarithm 對數(shù)的底 | base of natural logarithms 自然對數(shù)的底 | base period 基本周期

base of natural logarithm：自然封數(shù)底

母材試驗片 base metal test specimen | 自然封數(shù)底 base of natural logarithm | 基油 base oil

Trainable natural language processor：訓練的自然語言處理器

- Trainable auto mail-classifier. -訓練的自動郵件分類. | - Trainable natural language processor. -訓練的自然語言處理器. | - Trainable knowledge base engine. -訓練的知識庫中相應的引擎.