sample n. 1.样品,货样。 2.标本;榜样,实例。 3.【统计】典型取样,抽检查。 4.【电讯】信号瞬时值。 5.【冶金】 〔 pl. 〕 锌华。 That is a fair sample of his manners. 那就是他的典型态度。 a light sample 光脉冲。 up to sample 1. 和样品一样[相符]。 2. 可以接受的,可以同意的。 vt. 从…取样,从…抽样;提供;货样;对…进行抽样检查。
storage n. 1.贮藏(量),存储(量);(仓库)保管;库容量。 2.栈房,仓库,贮藏所。 3.栈租,栈费。 4.贮存器。 5.【电学】蓄电(瓶)。 6.【自动化】(计算机的)存储(器);记忆。 cold storage 冷藏。 a locker storage 密闭仓。 a storage dam 蓄洪堰。 Pork and mutton should be kept in cold storage. 猪羊肉应该冷藏。 The reservoir has in storage about five million cubic metres. 这水库有五百万立方米的储存量。 500 bales of cotton are in storage. 库内存有五百包棉花。
A sds-iso-propanol method suitable for tea plant, which was plentiful of tea polyphenols, had been developed using a modification of chen darning's method from different sample storage conditions such as fresh, dry and frozen shoots . it was a quick, easy, economical and effective method . the tactics were as follows : before the cell nuclear membranes were decomposed, the tea polyphenols and proteins etc . were removed 该法提取缓冲液使细胞维持一定的渗透压,研磨时使细胞核基本保持完整;在细胞核被裂解之前去除细胞质中的茶多酚、大部分蛋白质和rna;而后用sds裂解细胞核,异丙醇或乙醇沉淀dna,这样能经济、快速和有效地从富含茶多酚、茶多糖等次生物质的茶树新梢中提取基因组dna。
A new model about measuring harmonics on-line is proposed in this paper . after band pass filtering, sampling storage and the monitoring on-line with artificial neural network ( ann ), we can obtain the harmonics signal, which is used to compensate harmonics . using the basic principle of analog parallel harmonics measurement and a special multi-layer feedforward neural network, a corresponding harmonics measurement on-line is built 在本文中提出了一种新型电网谐波监测系统模型,通过带通滤波器,采样存储器以及神经网络组成的监测系统可以实时监测电网谐波,当电网中的3次、5次、7次谐波超过容许值时,给出控制信号启动以记录仪记录谐波,并可以控制谐波补偿,最终达到监督电网,抑制谐波、减小谐波的目的。