物物交换

This invention provides a polymerizer and polymerization equipment for producing an aromatic polycarbonate by melt transesterification from a molten prepolymer, of the aromatic polycarbonate, produced from an aromatic dihydroxy compound and a diaryl carbonate.

本发明提供了一种用于通过熔融酯交换由芳族聚碳酸酯的熔融预聚物生产芳族聚碳酸酯的聚合器和聚合设备，其中芳族聚碳酸酯的熔融预聚物由芳族二羟基化合物和碳酸二芳基酯生产。

"Niffer" to exchange, mutually exchange, or barter

&niffer&：交易，互相交换，或以物易物

The CMS line 9704A, the restorer 8001 and F, population of 9704AX8001 containing 120 individual plants were used for molecular mapping of the restorer gene by bulked segregant analysis. 515 decamer primers with arbitrary sequences were chosen for polymerase chain reaction amplification. It is found that the polymorphism between the parents could be detected by 43. 8% of the primer and one RAPD marker OPL09-76I was tightly linked to the restorer gene of the restorer 8001 with the overcross value of 4.17% and genetic distance of 4. 18cM. The marker was repeatable and easy to score.

以辣椒CHS系9704A、恢复系8001及其组合9704A×8001F_2群体120株植株为材料，利用群分法法进行恢复基因定位，通过515个随机引物的PCR扩增分析，发现43.8％的引物在双亲间表现出多态性，找到一个与辣椒CMS恢复系8001中的恢复基因紧密连锁的分子标记OPL09_(-763)，该标记与8001的恢复基因的交换值为4.17％，遗传距离为4.18cM。

Six new ligands and 2 mononuclear,5 binuclear,8 tetranuclear complexes all of which are new havebeen synthesised and characterized by elementalanalysis,electric conductance and IR,UV-Vis spactr-oscopic methods.

本文主要研究多核配合物中的磁交换相互作用。共合成了6个新配体，2个单核。5个双核和8个四核配合物，并用元素分析，红外，紫外一可见。

The optimum reaction condition for preparation of CoPcY is as follows: a , using CoCl2 as the exchanged salt ; b , complexation temperature of 180 ; c . complexation catalyst of NH4C1 and A1C13 .2, The unsymmetrically substituted cobalt phthalocyanine complexes were synthesized by statistical condensation of phthalic anhydride and tetrabromophthalic anhydride, and further immobilized in MCM-41 molecular sieves by zeolite synthesis method, as well as characterized by XRD,FT-IR,DRS, 1HNMRetc. The catalytic property of CoPcBrx/MCM-41was tested by cyclohexane oxidation using H2O2 or t-BOOH as oxidant.

2采用本路线制备CoPcY的最佳条件为：a、采用氯化钴作为待交换的金属盐；b、络合温度以180℃为宜；c、起始反应物为苯酐、尿素、氯化铵、氯化铝、CoY时，制备出的CoPcY的催化性能最好； 2、首次采用苯酐和四溴苯酐均相浓缩统计合成法制得了不对称取代的金属钴酞菁络合物，并采用~1HNMR、FTIR、DRS等对其进行了结构表征；此外，采用沸石合成法将其固定于MCM-41中孔分子筛，并对其催化性能进行了考察。

At first, bartering took place as an exchange between 2 people.

最开始的时候，以物换物只是发生在两个人之间的交换。

The automatic dryer are expected, or auto-transport function, can automatically feed-share level even after drying into the box; box multi-mobile network with stainless steel materials can automatically flip, hot Bottom-up flow through the network with its network with the top layer of material, heat and mass transfer uniform, full, high-productivity, product quality, good-looking color, with flow-through dryer equipped with cooling and vibration levels expected to lose Device, a low-temperature materials is conducive to packing in a timely manner; chain network dryer with the door activities, to facilitate the clean-up day

该烤箱设有自动均料、自动升运功能，可把料物自动摊平后均匀的送入烘干箱内；箱内采用多层移动式不锈钢网带可使料物自动翻转，热气流自下而上穿过网带及其网带上面的物料层，热质交换均匀、充分，生产效率高，产品质量好，色泽好看，烘干烤箱设有冷却层和震动输料装置，出料温度低，有利于及时包装；烘干烤箱设有活动门，便于每天清理

This is the direct exchange of a small num-ber of goods and/or services, usually between just two parties.

以物易物就是直接交换少量的货物或服务，通常发生在两方之间。

In a barter economy, goods are exchanged for goods directly without using money.

在一个以物易物经济里，人们以货物直接交换货物，没有人使用货币。

Rather than having to quote rate of exchange for each good in terms of every other good, as was the case in the barter economy, the price of everything could be measured in terms of corn.

与以物易物的经济不同，那时每种货物都必须用其他货物标出它的交换率，而现在任何东西都可以用玉米计价。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷