取样
- 与 取样 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In order to study degradation of potassic mineral by fungi, we isolated a thermophilic fungi strain TH003 from compost. The strain can use extract potassium from rocks as a nutrient. The strain was identified as Aspergillus fumigatus based on its morphological characteristics and molecular result.
为研究真菌对含钾矿物的吸附降解作用,作者从高温堆肥中分离选育出了一株丝状真菌TH003菌株,通过在含有矿物颗粒的改进PDA培养基中培养,使其在培养液中与矿物颗粒发生作用,再取样进行电镜观察和X-射线衍射分析以及电子探针观察。
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Through studying on the four kinds of pressure compensation containers,we select the precharge pressure accumulator as the pressure compensation containers of sampler.
通过对四种压力补偿装置的研究,选择了预充压力蓄能器作为取样器的压力补偿器。
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The results indicated that ultra-low nitrogen (0.001 0%-0.008 0%, w/%) in low alloy steel could be determined accurately under such optimized analytical conditions as follow: the addition of deoxidizing agent was less than 0.35%, multi-head milling cutter should be chosen and the milling depth was 1.4 mm while sampling, the mass percentage of argon was no less than 99.999 5%, the washing time was set as 8 s, the precombustion time was set as 3. 3 s and energetic precombustion energetic measure optical source mode is adopted.
结果表明,取样时控制脱氧剂加入量不超过0.35%且选用多刀头铣刀盘,铣样深度为1.4 mm;在氩气的质量分数不小于99.999 5%,冲洗时间为8 s,预燃时间为3.3 s,采用高能预燃高能测量光源方式等优化的分析条件下,可有效测定低合金成品钢中质量分数为0.001 0%~0.008 0%的超低氮。
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The results showed that 7-day-precultured embryogenic calli had the best responses for bombardment among 2-7 day' preculture duration. Enhanced transformation efficiency was found in the explants treated with high osmotic medium 4h prior to till 24 h after bombardment. Particles of gold and tungsten were both found suitable for rice transformation and there was no adverse effect when tungsten particles were reduced to 1/3 standard amount for DNA precipitation on transient GUS gene expression. However, it was found that gold particle had higher GUS expression at 120 h post-bombardment. A preliminary microprojectile transformation system with an average of 15-20 blue spots/explant GUS expression was routinely obtained for 'Tainung 67' by using the particle gun with 1,100 psi rupture disk, 6 or 9 cm microcarrier flight distance and 4 mm of macrocarrier flight distance setting.
初步结果显示,以预培养2~7日之胚性癒合组织逐日测试转殖率,以预培养7日之培植体表现最佳;培植体於转殖前4小时至转殖后24小时以高渗透压培养基处理,有助於转殖效率之提高;比较金、钨粒子对转殖率在转殖后48h並无不同,但转殖后120 h取样,则金粒子组有较高之蓝点数;钨粒子用量可减少至1/3標准用量对转殖率並无影响;利用基因鎗在使用1, 100 psi裂碟片、大载片至挡片之距离为4 mm、微载髁至射击目標之飞行距离6或9 cm之设定,GUS基因表现之平均蓝点数均可达15~20个/培植体。
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The Focus Animal Sampling and Continuous Recording were used in studying the daily activity rhythm and time budget The inferior and environmental factors which caused the time budget of the population were discussed,which promoted understanding about the behavioural ecology of Presbytis francoisi and provided theoretical foundation for conservation.
通过采用焦点取样法和连续记录法研究黑叶猴的日活动节律及活动时间分配,探讨引起种群活动时间分配的内在和环境因素,为增进对黑叶猴行为生态的了解及对其保护提供理论依据。
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This article studied differences in postpartum fatigue and birth outcomes between women who pushed immediately and those who delayed pushing during the second stage of labor. Data were collected from primiparous women in their 38th to 42nd gestational week who did not receive epidural analgesia during labor and were free of complications during pregnancy. Using a quasi-experimental design, 72 participants selected by convenient sampling were assigned based on individual participant's preference to either an experimental or control group. For the experimental group, pushing was delayed until the point after full cervical dilation at which the mother felt a strong physical pushing reflex, the fetal head had both descended to at least the +1 level in the pelvis and turned to the occiput anterior position, and uterine contractions were at least 30 mmHg. For the control group, the physician instructed mothers to begin pushing after full cervical dilation at the point when the fetal head was in the occiput anterior position and uterine contractions were at least 30 mmHg.
本研究目的在探讨初产妇女第二产程立即用力与延迟用力对产后疲惫及生产结果的影响,收案对象为怀孕38-42周初产妇女、待产期间未施打硬脊膜外麻醉,且怀孕期间无任何合并症,於待产期间向其解释研究目的及收案方法后予以收案,采类实验设计法,以方便取样并依个案之意愿分派於实验组及控制组,实验组於子宫颈完全扩张后等到强烈想用力的感觉、胎头位到达坐骨棘连线下1公分以下、胎头位置转到枕前位、子宫收缩规律强度至少30mmHg才教导向下用力;控制组於子宫颈完全扩张后即教导向下用力,共收案72位。
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The formation mechanism of pseudocubic a-Fe2O3 nanoparticles was discussed.The thin films of two kinds of copper phthalocyanines were prepared by spin-coating technique.
采用分时取样的方法,对FeCl_3的水解过程进行了跟踪测试,研究了准立方体形α-Fe_2O_3的形成机理。
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An unequal experiment and control groups design was used in this study. Four classes of 8th Grade students from The Nan-Men Junior High School in Taipei City were purposively selected as a sample.
本研究立意取样台北市南门国中二年级四个班的学生为研究对象兵161人,经随机分派为实验组(80人),控制组(81人)采不相等实验组、控制组设计。
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The purpose of this study was to understand the influence in women who were faced the medical decision of hysterectomy. This was a cross-sectional study. One hundred patients were selected purposively from three hospitals at eastern and north-eastern region of Taiwan.
本研究目的在了解多媒体影音光碟介入对妇女行子宫切除手术医疗决策之成效,采横断式研究方法,立意取样以东部某两家医院与东北部某医院病患为样本,共收有效问卷100份,利用结构式问卷及深入访谈进行研究。
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Twenty-four patients with essential hypertension were purposively selected as our study participants. Patients were interviewed by a doctor of Family Medicine who was also a researcher in our study, and the interaction process was taped for qualitative analysis.
本研究以立意取样,选取本态型高血压患者,经由质的资料收集与内容结构分析24位患者,发现第一种型态为注意内在线索的患者,以内因解释高血压,有身体化的担心与沮丧情绪;因应方式较谨慎。
- 推荐网络例句
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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。
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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。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。