二源的

Yeast cell rupture conditions by zymolysis were determined with waste brewer's yeast as material and α-amino nitrogen as inspection target.

确定了以啤酒废酵母为原料，酵母酶解液中α-氨基氮含量为考察指标的蜗牛酶酶解破壁条件；并以啤酒废酵母酶解液为有机氮源，厌氧发酵制备丁二酸。

MDA, activities of reactive-oxygen-scavenging enzymes, and change in endogenous antioxidant substances were measured respectively in Citrus guanxi-miyou hybridized and apomictic maturing fruits in the period of granulation.

以琯溪蜜柚自交果、杂交果果实汁胞为试材，测定了果实汁胞丙二醛含量、活性氧清除酶（POD、SOD、CAT）活性和内源抗氧化物质含量在果实成熟期间粒化过程中的变化。

Symmetrical six-horn nickel diselenide nanostars were firstly synthesized with selenium powder as precursor but without any external reducing agents. Each nanostar consisted of a central core and six symmetrical nanohorns.

以硒粉为硒源，在无外加还原剂的条件下首次合成了六角星状二硒化镍纳米晶，每个纳米星具有一个中心核和六个对称纳米角。

The Rb-Ba-Sc diagrams showed the provenance of Permo-Carboniferous in Jiyang Depression was the oldland in northern North China Platform, and the parent material was derived from the upper crust, which were confirmed by fruits of other researches.

4Rb-Ba-Sc标准化图解显示济阳坳陷石炭二叠系物源区可能是华北地台北部的古老岩体，母岩岩浆来自上地壳。

In addition, oxidoreduction potential of medium was regulated by addition of electron receptors or controlling the ratio of air to nitrogen. By optimizing the fermentation conditions of DA-1HB, 70 g.l-1 1,3-PD was produced and the molar yield of 1,3-PD from glycerol reached 69.9%.

4以1，3-PD合成性能占优的重组菌DA-1HB为工作菌株，调控培养基氧化还原态势，优化发酵工艺，以甘油为唯一碳源时，1，3-丙二醇合成浓度和摩尔得率分别达到70 g.l-1和69.9%。

A series of urea,thiourea and thiodiazole derivatives bearing mercaptotetrazole were synthesized using NaN_3 as a nitrogen source.

以叠氮化钠为氮源，合成了一系列含四唑环的芳基脲及噻二唑类化合物，其结构经1H NMR，IR和元素分析表征。

The charge pump electronic ballast circuit which employs a charging capacitor and a high frequency AC source to implement the power factor correctionhas become an attractive topology for the ballast of the fluorescent lamp.

西安无线电二厂，陕西西安710016）摘要：电荷泵式电子镇流器，采用充电电容和高频交流源，以实现功率因数校正，这已成为荧光灯镇流器中极有吸引力的电路拓扑。

A 2-D grid model is used to study the effect of biogenic hydrocarbon to photochemical pollution in Guangzhou.

运用二维网格模式模拟天然源排放碳氢化合物对广州地区光化学污染的影响。

According to the United States Environmental Protection Agency, incineration plants are no longer significant sources of dioxins and furans.

美国环保署认为，目前垃圾焚烧炉不再是主要的二噁英排放源。

To induce diploid gynogenesis in summer flounder, eggs were fertilized with heterogenous cryopreservative sperm of Lateolabrax japonicas , which was irradiated with UV ray to be genetically inactivated, and cold shock was used to prevent extrusion of the second polar body.

中文摘要：用冷冻保存的花鲈精子作为异源精子，采用紫外线对精子进行照射使其遗传物质失活，然后与卵子进行&授精&，可以刺激犬齿牙鲆鱼卵进行雌核发育，在受精后一定时间采用冷休克处理&授精&卵，抑制第二极体排出成功获得了犬齿牙鲆雌核发育二倍体鱼苗。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。