互变

Hydrophobic-hydrophilic macroporous polydivinylbenzene/polyacrylethylenediamine interpenetrating polymer networks (PDVB/PAEM IPN) were prepared by the sequential suspension polymerization method. These were composed of two networks, of which one was hydrophobic and the other was hydrophilic. The objective of this work was to study the adsorption thermodynamics and adsorption kinetics of this hydrophobic- hydrophilic IPN. The focus was on adsorption isotherms of vanillin at different temperatures, and these fit well into the Freundlich adsorption isotherm. The isosteric adsorption enthalpy, adsorption Gibbs free energies and the adsorption entropy could be calculated according to thermodynamic functions.

采用分步悬浮聚合法制备了具有疏水性能的聚二乙烯基苯(polydivinylbenzene， PDVB)为第一网，具有亲水性能的聚丙烯酰乙二胺(polyacrylethylenediamine， PAEM)为第二网的疏水／亲水大孔聚二乙烯基苯／聚丙烯酰乙二胺互穿聚合物网络(interpenetrating polymer networks， IPN)，研究这类疏水／亲水IPN组成的树脂对吸附质的吸附热力学和吸附动力学；测定了该树脂对香兰素在不同温度下的吸附等温线，吸附等温线符合Freundlich等温吸附方程，利用热力学函数关系计算出了吸附焓、自由能和熵变。

This is because natural selection emblematizes the ecological interaction of a population, whereas drift is regarded as a sampling procedure across successive generations without regard to fitness pressures imposed by the environment.

这是因为自然选择象征着一个群体的生态互作，而漂变被视为不考虑环境对适合度所施压力的、在连续世代里的抽样过程。

The writer simplifies and induces thin-bedding medium in the East of China to several seismogeologic models: wedge model; thin-bedding group in which two mediums have equal thickness, thin-bedding group in which two mediums have not equal thickness and formations whose thickness orderly gradates from top to bottom.

本文通过对某油田的若干口钻井的测井曲线和岩性资料进行分析研究，认为我国东部油区的薄互层地层的地质特征为：①大多数地层为低于目前地震勘探分辨率的薄层或超薄层；②地层在横向上相变剧烈；③地层结构具有多种类型。

At here, based upon designing idea of the shearing planes of left and right two shears are at ±45° with respect to main transmission plane and the combination with changeable structure, the shearing mechanism of two mutually twisted flat screw wires was designed.

在此，基于左右两把剪刀的剪切平面相对于主传动平面成±45°，以及与变结构相结合的设计理念，设计出了两根互绕扁螺旋钢丝的剪切机构。

Leaves variable, those on previous year's branches usually alternate, those on short branches approximate and often fascicled; petiole 1–2(–3) cm, glabrous, with 2 to 4 nectaries at apex or at base of leaf blade; leaf blade lanceolate to elliptic-lanceolate, 3–6(–9)× 1–2.5 cm, slightly pilose when young, glabrescent, base broadly cuneate to rounded, margin shallowly densely serrate, apex acute to shortly acuminate.

易变的叶，那些在通常互生的第二年分枝上，那些在短枝紧靠和通常簇生上；叶柄1-2(-3)厘米，无毛，具2在4蜜腺在先端或叶片的在基部；叶片披针形的到椭圆形披针形， 3-6(-9)* 1-2.5 浅的幼时的厘米，稍具柔毛，后脱落，基部宽楔形到圆形，边缘浓密有锯齿，先端锐尖到短渐尖。

As for any potential awkwardness after the fuct, UNCUT, if the hottest guy you've ever swapped blowjobs with in your life—presuming the exchange of blowjobs goes down—is cold and distant, or even hostile, it might be because he doesn't want to get with you again.

至于事后有可能的尴尬情况，没割，如果这个最辣的同志是你唯一互相口交过的人—假如后来的互交减少—甚至变得冷漠、疏远甚至有敌意，可能是他不想和你继续了。

Photo 4 d and 4 c on the contrary, it makes the image and tiaogan high school, darkened sulci.

图四d则和四c互异，它使图像矮洋调增浅，而暗调变浅。

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把网站流量分析真正当做一项事业来做的，十年来，也只有Alexa一直在坚持着，就这份坚持，也足以让人肃然起敬了，所以陈设世家认为做站应该冲实际出发，而不应该一时为了提高Alexa排名而对Alexa进行作弊，甚至开着几台电脑挂上Alexa互刷网页，alexa排名的算法虽然经常在变，但是只要认真做站，还是可以得到一个比较好的排名的。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！