envelope ['envələup]

envelope的基本解释

n.

信封, 封套, 封袋

• Mother addressed the envelope.
• 母亲在信封上写姓名地址。

envelope所属的单词分类

Container / 容器 [100]

ice bucket  ·  grocery bag  ·  file folder  ·  paper bag  ·  water bottle  ·  plastic bag  ·  wastebasket  ·  vial  ·  vessel  ·  vesicle

New Year / 新年 [157]

yin and yang  ·  twelve o'clock  ·  steamed fish  ·  spring rolls  ·  phases of the moon  ·  noise maker  ·  lion dance  ·  dimsum  ·  Auld Lang Syne  ·  New Year cake

Post / 邮政 [99]

postal code  ·  book rate  ·  po box  ·  mail truck  ·  post office box  ·  commemorative stamp  ·  advertisements  ·  zip code  ·  post office  ·  uncanceled

与envelope相关的网络例句 [注：此内容来源于网络，仅供参考]

The LMD algorithm uses extrema to define the local mean and envelope, then to smooth the mean and envelope. To decrease errors in the smoothing process by using moving averaging, a new local mean and envelope definition method (the spline-based LMD) is proposed. The upper envelope and the lower envelope are obtained by connecting the local maxima and the local minima using a cubic spline line. The local mean is defined as a mean of the upper envelope and the lower envelope. A nonlinear simulation signal and a practical vibration signal are decomposed by the LMD and the spline-based LMD.

LMD算法用极值点来定义局部均值函数和局域包络函数，然后用滑动平均来平滑均值和包络函数，针对用滑动平均平滑均值和包络函数误差较大的缺点，提出了采用三次样条对上、下极值点分别插值求得上下包络线，然后由上下包络线的平均获得局部平均函数，由上下包络线相减的绝对值获得局部包络的方法。

First,the envelope rectangles set was obtained by equiangular rotation the initial envelope rectangle, and the periphery polygon was constructed by calculating the intersection points between the corresponding edges of the envelope rectangles set.

首先利用等角度旋转方法求得封闭曲线的包络矩形集，利用矩形集对应边的交点得到曲线的外包多边形。

Under normal temperature.the Ca2+-ATPase activity was found on the innerside of the PM.on the vacuole envelope and the chloroplast envelope,and theenzyme activity declined upon heat stress.The Ca2+-ATPase activity on the vacuoleenvelope,PM.and the chloroplast envelope in both Ca2+-and oxalate-treated peppermesophyll cells was higher than that in the control under the same condition.TheCa2+-ATPase was also found at the granum lamella,and it was activatedsignificantly by exogenous Ca2+ and oxalate treatments.Under heat stress.the Ca2+-ATPase activity declined slowly in both Ca2+- and oxalate-treated mesophyll cells.But La3+ treatment inhibited the enzyme activity under both normal condition andheat stress.

常温下生长的叶肉细胞，在质膜、液泡膜、叶绿体被膜等处有Ca2+-ATPase活性，热胁迫后酶活性下降；外源Ca2+和草酸预处理对辣椒叶肉细胞各种膜上Ca2+-ATPase活性具有促进作用，特别是定位于液泡膜、质膜和叶绿体被膜上的酶活性明显比对照提高；在叶绿体基粒和基质片层上也有酶活性，并且Ca2+和草酸预处理对该部位上的酶活性激活作用更明显；La3+处理的作用与Ca2+和草酸处理的效果相反。

与envelope相关的网络解释 [注：此内容来源于网络，仅供参考]

envelope：信封

为了了解'sendmail'程序怎样工作,通常需要了解一下"信封"(envelope)的概念. 这非常类似书面信件;信封上定义这个消息投递给谁,并注明由谁发出( 为了报告错误的目的). 在信封中包含的是"消息头"和"消息体",之间由一个空行隔开.

envelope：包膜

后发现该病毒也可存在于其他疾病,故称为EB病毒(Epsteinbarr virus,EBV),EB病毒属疱疹病毒科,又称人疱疹病毒4型(HHV-4),为双链DNA病毒,完整的病毒颗粒由类核(nucleoid),膜壳(capsid),壳微粒(capsomere),包膜(envelope)所组成,类核含有病毒DNA;

envelope：外壳

汉他病毒属RNA型病毒,病毒呈圆形或卵圆形(如图一),直径约80-115(95)nm,核外被含有脂质之外壳(envelope)所包围,外壳表面有突起,病毒在细胞质内增殖时可产生大量之特殊包涵体.

envelope：包络

在数学上,"包络"(envelope)是指一系列的直线(或曲线)包围出一个形状的情形. 如图1中的直线组成一个圈,然而实际上我们并没有"画"这个圆,这时就把这个圆称作是包络线.

envelope：abbr. env; 发现被膜抗原