查询词典 PS

Dimethylamino)ethyl methacrylate was polymerized using PS-CH_2Cl as macroinitiator and CuCl/ 2,2 '-Bipyridyl as catalyst in toluene to acquire amphiphilic brush-type copolymers of PS-g-PDMAEMA.

再以氯甲基化的聚苯乙烯(PS-CH_2Cl)为大分子引发剂，在CuCl和2，2′-联吡啶(2，2′-Bipyridyl，bpy)存在下，以甲苯为溶剂，进行甲基丙烯酸N，N-二甲胺基乙酯2-(Dimethylaminoethyl methacrylate，DMAEMA的ATRP聚合，得到两亲性的梳状共聚物PS-g-PDMAEMA。

Under certain conditions, the new PS version of tension over ductibility, with the new PS plate made of plates business card printing and membership card production, its ductibility non-obvious.

在必定前提下，陈PS版的抗不推性较其延展性不弱，用陈PS版制成的印版制卡和会员卡制作，其延展性不澄辉。

The kinetic behaviors of ethylene homo- olymerization and ethylene / l-hexene co-polymerization , catalyzed by the metallocene catalyst PS-DVB-MC in an 0.5 L stainless steel reactor , were studied. The effects of polymerization conditions on ethylene polymerization , such as concentration of catalyst , temperature of polymerization , pressure of ethylene , molar ratio of AI / Z r , etc ., were also investigated . Some leading results were as follows : the activity of the catalyst PS–DVB- MC for ethylene homo-polymerization was high ( 1.053 x 107 gPE / mol Zr·h ), but the molar ratio of AI / Zr was low ( 350:1 ); the catalytic ability for ethyleneα-olefin ( such as l hexene etc .) co-olymerization was great , and the corresponding activity come up to a maximum of 1.753 x 107 gPE / mol Zr·h while concenlration of l-hexene was 0.080 mol / L ; the molecular weight of polyethylene was about 180,000 , meanwhile the molecular weight distribution was narrow ( 2.19 ); the bulk density of polyethylene and ethylene / l-hexene co -polymer were 0.25 and 0.34 respectively .

采用0.5L高压不锈钢反应釜，对催化剂PS–DVB-MC催化乙烯均聚和乙烯/ l-己烯共聚合的动力学行为进行了研究，详细考察了催化剂浓度、反应温度、压力、Al/ Zr比、1-己烯浓度等因素对乙烯聚合反应的影响，得到如下主要结论：催化剂PS-DVB-MC具有催化乙烯均聚的高活性(1.053×107g PE / mo1 zr.hr)，低Al / Zr比( 350：1 )；具有良好的催化乙烯与α-烯烃(如1-己烯等)共聚的能力，在1-己烯浓度为0.080 mol / L时，催化活性达到最大(1.783×107 g PE / molZr.hr)；乙烯均聚产物的分子量在18万左右，分子量分布窄( 2.19 )。

The effect of different contents of PS-b-PDMS-b-PS on the hydrophobic properties, flexibilities and chemical resistance were studied.

研究了PS-b-PDMS-b-PS的添加量对涂膜的表面性能、柔韧性、耐化学介质稳定性等性能的影响。

The results of DPBMN in n-hexane solution show that there are two non-radiative processes occurring in the local excited state. The decay time constants of ~4 ps and ~ 220 ps are due to vibration relaxation and intersystem crossing processes respectively.

实验结果显示DPBMN分子在非极性溶剂中的区域性激发态(local excited state，LE state)有两个非辐射缓解的过程发生，首先为发生在LE能阶的振动缓解(~ 4 ps)，之后为系统内转换的过程(~ 220 ps)。

Jin Shui HighSPEED Mill Power Producing System can make the differdnt molal structures mate rials powderfor 20 eyes to 80eyes in common temperaeure, These materials are differdnt kinds of soft hard PVC 、PP、PS; thosecan change its nature such as PP、TEP、 PS、 PA、 PC ,etc; non-plastic such as dee rhm, timber, leather and palm oil shells, etc,Especially suit for raw material of plastic to chang its naure, paints of mother colour tofill up , paints, tec .During the working process, firstly put the quantitative and well-distrib uted rawmaterialsun to the Moll Box by the Hopper, them put the powder out of the Moll box by Auto loader, finallysirfand retrieve the powder through sifting machine .If someofthe have not milled well , you can do itagain As a matter of fact, it will be as excellent as the mew plastic and can keep every normof the munchang eablein their function of chemistry and physicsafterusing about 30% of power mixed up with 70%raw mate rials of plastic. So the machines if helpful of plastic businessman to save money and good for protecting our environ mentathe same time

金穗JS 系列高精密磨粉生产系统能在常温下将各种的软硬：PVC、 PP 、PS 及改性PP 、PS 、PA 、PC 等不同分子结构的及非塑料类如（鹿角、木梢、皮革及棕油壳等）材料磨制成20目~80目粉末状，适合塑料原料改性，色母料填充涂料、塑纺织的涂料、地毯背面涂料、制药等加工行业，这些颗粒原料通过定量的加料器均匀地送进磨箱中，再由吸风机将磨好的粉末吸出磨箱经过筛选机筛选回收，如较粗的颗粒再次被送进磨箱中进行粉磨，这些材料经过我们特殊改良刀齿，创新突破来配合日新月异原材料组合使用，经塑料制品厂商实践证明在其产品原料中加入磨制粉体30%左右使其更好塑化且其制品的化学，物理性能保持全新料的各项指针不变，因此是塑料厂商降低成本且同时有利于保护环境的粉磨回收设备。

In Shui HighSPEED Mill Power Producing System can make the differdnt molal structures mate rials powderfor 20 eyes to 80eyes in common temperaeure, These materials are differdnt kinds of soft hard PVC 、PP、PS; thosecan change its nature such as PP、TEP、 PS、 PA、 PC ,etc; non-plastic such as dee rhm, timber, leather and palm oil shells, etc,Especially suit for raw material of plastic to chang its naure, paints of mother colour tofill up , paints, tec .During the working process, firstly put the quantitative and well-distrib uted rawmaterialsun to the Moll Box by the Hopper, them put the powder out of the Moll box by Auto loader, finallysirfand retrieve the powder through sifting machine .If someofthe have not milled well , you can do itagain As a matter of fact, it will be as excellent as the mew plastic and can keep every normof the munchang eablein their function of chemistry and physicsafterusing about 30% of power mixed up with 70%raw mate rials of plastic. So the machines if helpful of plastic businessman to save money and good for protecting our environ mentathe same time

S 系列高精密磨粉生产系统能在常温下将各种的软硬：PVC、 PP 、PS 及改性PP 、PS 、PA 、PC 等不同分子结构的及非塑料类如（鹿角、木梢、皮革及棕油壳等）材料磨制成20目~80目粉末状，适合塑料原料改性，色母料填充涂料、塑纺织的涂料、地毯背面涂料、制药等加工行业，这些颗粒原料通过定量的加料器均匀地送进磨箱中，再由吸风机将磨好的粉末吸出磨箱经过筛选机筛选回收，如较粗的颗粒再次被送进磨箱中进行粉磨，这些材料经过我们特殊改良刀齿，创新突破来配合日新月异原材料组合使用，经塑料制品厂商实践证明在其产品原料中加入磨制粉体30%左右使其更好塑化且其制品的化学，物理性能保持全新料的各项指针不变，因此是塑料厂商降低成本且同时有利于保护环境的粉磨回收设备。

It is found that the lifetime of excited states is monotonically reduced with decreasing quantum-well width,from 350 ps in bulk to 55 ps in a 100 ?

实验结果表明：随着量子限制效应的增强，受主激发态寿命而减少，实验测得体材料中Be受主2p激发态的寿命是350 ps，而阱宽10 nm的多量子阱中的寿命是55 ps。

The result showed that PSexternalization. This observation suggested that apoptotic neurons losed membranephospholipid asymmetry and exposed PS on the outer leaflet of the plasmamembrane. Macrophages then phagocytose apoptotic neurons after specific recognition of theexposed PS.

流式细胞术检测磷脂酰丝氨酸，结果表明凋亡的神经细胞PS外翻，证明AVM可使凋亡的神经细胞膜丧失不对称性，细胞膜中的PS由脂膜内侧翻向外侧，可被吞噬细胞识别后导致凋亡细胞的清除。

Pluvialis, at the pH range of 7.5-8.0, the Fv/ Fm, Fv/ F0,ΦPSⅡand ETR increased following the rising of pH, with their maximum values at pH 7.5, Fv/ Fm and Fv/ F0 decreased significantly over pH 7.5, while the decreasing trend didn't change obviously in ΦPSⅡ and ETR.

pluvialis CG-11叶绿素荧光动力学参数呈现出相似的趋势，在6.0－7.5范围内，Fv/ Fm、Fv/ F0、ΦPSⅡ和ETR值随pH升高而增大，pH为7.5时达到最大值，pH超过7.5时，Fv/ Fm和Fv/ F0值明显下降，而ΦPSⅡ和ETR的下降趋势不明显。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。