乙烯

Objective To analyse the correlation between changes of liver hemodynamies and liver fibrosis markers in patients with trichloroethylene medicamentous dermatitis and furthermore study the prognosis of these patients with liver disfunction.

目的 探讨三氯乙烯药疹样皮炎患者肝脏血流动力学参数改变与肝纤维化指标的关系，为判断三氯乙烯药疹样皮炎肝损害的程度知预后提供依据。

Methanol hydrochlorinate has two steps: one is to produce monochloro methane by methanol hydrochlorinate reaction and the other is to make monochloro methane produce polychlorinated methane.

二硫化碳法、氯油法和乙醛法因不经济和环保问题在国外已被淘汰；C1一C3废氯烃全氯化法是利用氯乙烯等装置的副产废料生产四氯化碳并联产四氯乙烯，该法是一种非常经济的工艺，在国外曾被十分广泛地采用，但随着发达国家四氯化碳的停止使用，目前大部分基于该工艺的装置被迫停产。

In addition, the invention further relates to a catalyzer combination used for polymerizing a conjugated dialkene monomer and the anions of an optional mono-vinyl aromatic hydrocarbon into a polydiene polymer having high and medium vinyl content. The catalyzer combination comprises an organolithium compound used as an anionic polymerization initiator, at least an alkali metal alkoxide compound expressed by the formula as a structure regulator.

此外，本发明还涉及一种用于将共轭二烯烃单体和任选的单乙烯基芳烃阴离子聚合成具有中高乙烯基含量的聚二烯聚合物的催化剂组合物，其包含作为阴离子聚合引发剂的有机锂化合物，和作为结构调节剂的至少一种式所示的碱金属醇盐化合物。

Gerbera plantlets in 125 ml flask received 0, 2.5, 5, 10, 20 ppm Ethrel and 0.01, 0.1, 1 mM 1-aminocyclopropane-1-carboxylic acid to study the effect of ethylene and ethylene biosynthesis through cultured in vitro. The good quality plantlets which had more adventitious roots, no overgown stem, no etiolated plantlets by the addition of 5, 10 ppm Ethrel.

非洲菊(Gerbera jamesonii， Bolus)幼苗於试管内处理以0， 2.5， 10， 20 ppm的益收素及0.01， 0.1， 1 mM的环丙烷氨基羧酸(1-aminocyclopropane-1-carboxylic acid， ACC)以研究乙烯对试管苗之影响及乙烯生合成，结果以5及10 ppm的益收素处理能得到良好品质的苗，为多侧根不徒长，不白化的幼苗。

Furthermore,using oxaldehyde,make the emulsion crosslinked and form a kind of net structure,thus a new kind of water-resistant adhesive is created.

通过醋酸乙烯酯共聚改性的方法，用醋酸乙烯与丙烯酸系单体共聚，采用无皂乳液聚合，然后用乙二醛交联，使乳液形成网络结构，制备了一种新型耐水性胶粘剂，研究了共聚单体对乳液性能的影响，并采用DSC、透射电镜等对乳液结构及性能进行了测试。

A new kind of non-formaldehyde water-resistant emulsion is prepared by modifying polyvinyl acetate with the surfactant-free copolymerization to polymerize vinyl acetate and the acrylic acid monomers,and then by using oxaldehyde to make the emulsion crosslinked to form a kind of net structure.

通过醋酸乙烯酯共聚的改性方法，用醋酸乙烯与丙烯酸系单体共聚，采用无皂乳液聚合，后用乙二醛交联，使乳液形成网络结构，制备了一种无甲醛的新型耐水性乳液。

Binary blends of polyoxymethylene/co-polyamide and ternary blends of poly- oxymethylene/co-polyamide/ethylene-vinyl (POM/COPA/EVA) were prepared and the effect of COPA and EVA contents on properties of blends was investigated.

研究了聚甲醛/共聚酰胺二元及聚甲醛/共聚酰胺/乙烯-醋酸乙烯酯共聚物(POM/COPA/EVA)三元共混物，探讨了COPA、EVA用量对共混体系性能的影响。

From the experiment discovered for the first time the dimethyl ether may substitute CO to take the chain-carrying agent of the peroxy free radical chemistry amplifier system, and optimized the CH_3OCH_3-NO-HO_2 chemistry amplifying system determination condition, the CH_3OCH_3 best density is 1.876 ppmv, the NO best density is 1.3ppmv, and obtained this method chain length CL=124, 5 parallel determinations densities of HO_2 are the 44.0pptv, the relatively standard deviation is smaller than 4%; Although chemistry box model computed result indicated the dimethyl ether, the ethene, the propene and the ethanol all can take the chain-carrying agent of the peroxy free radical chemistry amplifier system, and their simulation chain length all grows up compared to the CO-NO-HO_2 chemistry amplifying systems, but experiments proved the ethene, the propene and the ethanol have not suit the chain-carrying agents.

首次从实验上发现二甲醚可以替代CO作为过氧自由基化学放大系统的链传递试剂，并优化了CH_3OCH_3-NO-HO_2化学放大系统的测定条件，CH_3OCH_3的最佳浓度是1876ppmv，NO的最佳浓度为1.3ppmv，并得到了这一方法的链反应长度(CL=124)，5次平行测定浓度为44.0pptv的HO_2自由基，相对标准偏差＜4％；虽然化学盒子模式计算结果表明二甲醚、乙烯、丙烯和乙醇都能作为过氧自由基化学放大系统的链传递试剂，并且它们的模拟链长都比CO-NO-HO_2化学放大体系的链长大，但是实验证明乙烯、丙烯和乙醇不适合作为过氧自由基化学放大系统的链传递试剂。

The mutation potential of ethephon was by investigated the micronucleus test of bone marrow polychromatophilic erythroblastsPCE cells and sperm shape abnormality test in mice.

为测定乙烯利对人体健康的影响，采用小鼠骨髓细胞微核试验和小鼠精子畸形试验分别检测了乙烯利对小鼠体细胞和生殖细胞的致突变性。

In this paper, prediction of the back surface reflection, which is based on attenuation and phase velocity dispersion estimation method, in highly attenuating plastic (polyvinylidene fluoride—PVDF) has been described.

在本文中，预测背部表面反射，这是基于衰减和相速度色散估算方法，在高衰减塑料（聚偏氟乙烯-聚偏氟乙烯）已被描述。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。