查询词典 retention
- 与 retention 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Color retention technology of can ned mung bean sprouts was studied in this text.
以新鲜绿豆芽下胚轴为材料,研究了绿豆芽罐头加工中的烫漂护色工艺。
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Moreover, the optimum thickness of ONO stack performs excellently for almost no gate disturbance, no read disturbance and long data retention. Even after 10K P/E cycling stress, the error bit wouldn't happen in such device's sensing window. As a result, the WSG-SONOS memory with split-control gate in NAND array is very adapted for the 2 bit/cell mode with multi-level operation.
此外,利用最佳化的ONO厚度可以达到非常优秀的抗闸极扰动、抗读取扰动与长时间资料保存的能力;即使经过一万次的重覆写入/抹除的操作后,仍能够保有原始的临界电压窗差值并在位元感测区间的范围之内,而不会有位元判断错误的结果发生。
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The retention periods of each agency will vary according to their needs and should be developed by each agency and approved by NARA.
保留期的每一个机构,将依他们的需要和应该由每一个机构和批准,由奈良。
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For some neo-Darwinian theorists, comic strip characters such as Charlie Brown illustrate the evolutionary phenomenon of neoteny,the retention of childhood features in an adult.
对于一些新达尔文主义学者来说,查理。布朗代表了早熟的进化现象。孩子的保持力也反映了成人的物征。
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Paedomorphosis is the retention of ancestral juvenile characteristics into adulthood in the descendent. Paedomorphosis can occur three ways: Progenesis (early sexual maturation in an otherwise juvenile body), Neoteny (reduced rate of morphological development), and Post-displacement (delayed growth of certain structures relative to others).
幼体发育是保持祖先性状的过程,成年期只不过是一个衍生的过程,幼体个体发育可以观察到三个阶段:初期发育,幼态(形态学发育的快速表现过程),和加快取代期。
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The results indicated as follows:the total nutrient elements accumulation of various Slash Pine stands amounted to 1273.83-1615.88kg/hm2,of which stem occupied about 60%. The nutrient retention accounted for 111.46-133.39kg/hm2*a,which is higher than that of either Chinese fir or Masson pine plantation. The nutrient return equalled to 90.43-105.09kg/hm2*a. Nutrient elementsturnover period is long while cycling rate is lower. The net production per ton needs 13.19-14.81kg nutrient.
结果表明:湿地松林分中养分元素总积累量为1273.83-1615.88kg/hm2,树干约占60%,积累速率为111.46-133.39kg/hm2*a,高于杉木和马尾松,归还量仅有90.43-105.09kg/hm2*a,其周转期长,养分循环速率低,每生产1t有机物需要上述养分元素共13.19-14.81kg。
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The conclusions were as follows: theνO-H andνC=O IR absorption maxima shifted towards higher wave numbers after imprinting 17β-estradiol on TFMAA-co-TRIM copolymer with the red shift of theνO-H groups being apparent after precipitation polymerization for 16h while that forνC=O groups being observed after polymerization for 24h. A strong interaction between TFMAA and 17β-estradiol was confirmed by the high selectivity for 17β-estradiol, as indicted by the values of the separation factor of isomers of 17β-estradiol/17α-estradiol (2.28) and the imprinted factor (3.01). Particle diameter of TFMAA-co-TRIM polymer was between 300 nm and 1.5μm, which suited well for solid phase sorbent throughout at low column pressure. The recognition of imprinting TFMAA-co-TRIM polymer for sterol molecules was driven by enthalpy eluted with acetronitile, and low temperature was in favor of the separation of sterol structure analogues on imprinting column. TFMAA-co-TRIM polymer possessed of determinate anti-heat stability, with melting point beginning at 255.84℃, Tp=257.40℃, control TFMAA-co-TRIM polymer and imprinting TFMAA-co-TRIM polymer were respectively decompounded at 267.79℃and 343.11℃, and solid micro-extraction noddle prepared by the special polymerization also showed definite recognition for 17β-estradiol by GC/MS detecting at 270℃. By selection of various washing and elution solvents, elution reagents of close polymerization system were of more advantage in template molecules retention and recognition on molecularly imprinted solid phase extraction column. At a certain extent, progesterone, 17α-estradiol, 17β-estradiol and 4-androstene-3, 17-dione could be intercepted on the MISPE column. Especially, MISPE had high selectivity for progesterone, and imprinting TFMAA-co-TRIM polymer could achieve adsorption balance within 50 min by absorption kinetics test for 17β-estradiol. However, MISPE column showed better selectivity and enrichment property for 17β-estradiol than C18 and CSPE columns according to the data from HPLC and GC/MS analyses. Recovery of 17β-estradiol on MISPE column was up to 85.5% while when prime extracting solution of milk powder was sampled, the recovery of CSPE and C18 columns were 43.7% and 30.7%, respectively.
通过研究阐明:紫外聚合产物TFMAA-co-TRIM中的νO-H振动吸收峰在聚合16h后红移,νC=O振动吸收峰在聚合24h后红移;TFMAA-co-TRIM对雌二醇异构体的印迹因子达到了3.01,α为2.28,优于其它功能单体参与得到的聚合物识别特性;TFMAA-co-TRIM聚合物粒径介于300 nm至1.5μm之间,作为色谱固定相具有良好的通量和低的柱压;在乙腈流动相中,TFMAA-co-TRIM分子印迹固定相的分离过程主要被焓驱动,低温有利于分子印迹固定相分离甾醇结构类似物;TFMAA-co-TRIM分子印迹聚合物在255.84℃时开始熔融,Tp=257.40℃,聚合物CP的降解温度在267.79℃,MIP降解温度在343.11℃,制备的固相微萃取头初步经GC/MS 270℃的耐热性测定;不同的洗提溶剂筛选证明了选择接近聚合溶剂的洗脱体系更有利于MISPE发挥识别效应;分子印迹固相萃取柱对孕酮、17α-雌二醇、17β-雌二醇和雄烯二酮都具有不同程度的保留特性,可作为此类化合物的吸附材料,特别对孕酮强保留的富集特性,可作为孕酮的选择性识别吸附剂,其分子印迹聚合物对17β-雌二醇的吸附动力学测定显示在50 min内基本达到吸附平衡,具有作为传感器核心敏感材料的潜力;对比萃取奶粉中17β-雌二醇性能,MISPE柱比非分子印迹固相萃取柱和C18柱具有更高的保留,回收率依次为85.5%,43.7%和30.7%。
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Nonparametric estimation in the survival analysis were used to estimate the retention probability of customers at every transaction period,and the expected duration of the customer lifetime,i.
采用生存分析中的非参数方法估计客户在其每个交易期内的维系概率、客户的期望寿命和客户终生价值。
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The column was connected to a nonpolar deactivated precolumn, or retention gap 1 m · 0.32 mm i.d.
专栏是连接到一非两极的解除动员 precolumn了,或保持缝隙 1 m · 0.32 毫米 i.d。
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I'm intent on tentative retention of potential pate nts.
我热衷于潜在专利权的暂时保留。
- 推荐网络例句
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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
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Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
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You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?