对照

Methods through analyzing the state of 175 children nursed with canal treatment, we conclude the key of nurses' cooperation of the four-handed technique and compare experimental group with control group in treatment time of every tooth and the degree of satisfaction of patient.

对175例根管治疗的儿童护理情况进行分析，总结护士在根管治疗术中四手操作的配合要点，并且比较四手操作组和自身对照独立组在每牙每次治疗时间和患者满意度的差别。

It is the fact that three methionines distributed in the Hsp16.3 will begradually oxidated, in vitro, by hydrogen peroxide(H2O2). When the hsp16. 3 gene was cloned with pMV261 plasmid vector and transfected into Mycobacterium smegmatis, we found that the ability of anti-H2O2 will be decreased greatly among the strains of M. smeg. containing pMV261-hspl6. 3 while compared with the control strains of M. smeg. containing free plasmid vector. But we found that the ability of anti-H2O2 will be increased greatly among the strains of M. smeg. containing pMV261-38kDa while compared with the same control.

尽管Hsp16.3中有三个甲硫氨酸在体外能被过氧化氢(H_2O_2)逐一氧化，我们将Hsp16.3基因克隆到pMV261质粒上，并转染到耻垢分枝杆菌中发现，转染了pMV261-16.3的耻垢分枝杆菌抗过氧化氢的能力大大下降，而对照含pMV261-38kDa的耻垢分枝杆菌抗过氧化氢的能力却有明显的增强，据此，我们认为，Hsp16.3在细胞内可能不具有抗过氧化氢的能力。

Using solution culture experiment, discussed the influnce of nitrobenzene to the germinationrates and seedling growth of ten leguminous crops, and results showed that, when the nitrobenzeneconcentration was 1～100mg·L~(-1), it had little influnce to germination rates of leguminous crops,with the increasing of nitrobenzene concentration, emergence rates of leguminous crops decreased,but no significance compared with control, and found that the toxicity of nitrobenzene toleguminous related with the concentration, the thresholds of nitrobenzene toxicity to differentleguminous crops were different, under the test conditions, the inhibition of root was larger thanhypocotyl, according to the relationship between the inhition rates of root and hypocotyl length andthe nitrobenzene concentration, the sensitive order of the ten leguminous crops to nitrobenzenewas:small-seedsoybean＞kidneybean＞Dongnong42＞brownbean＞Dongnong49＞Dongnong46＞ormosia＞french bean＞black bean＞mung bean.

本研究探索了硝基苯对十种豆类作物的发芽率及幼苗生长的影响，结果表明：硝基苯浓度为1～100mg·L~(-1)时，对豆类作物发芽率影响不大，随着硝基苯浓度的增加，豆类作物出苗率有所降低，但与对照差异不显著，研究发现硝基苯对豆类作物的生物学毒性同浓度有关，硝基苯对不同的豆类作物的毒害阈值不同。

So if we output frequence of music basic bit accordingly,music can gain accordingly too.

只要我们对照音符输出相对应的频率，就可以产生美妙的音乐。

This technique was modified as follows: the small rubber particles were purified and diluted to give a protein concentration of an absorbance at 600 nm of about 2.0～2.5; 0.5% basic fuchsin was prepared by being dissolved in 50 mmol/L Tris-HCl(pH7.4); the reaction mixtures were incubated for 30 min at 25 ℃, and centrifuged for 5 min at a speed of 5 000 r/min; and B-serum can serve as the protein samples for the positive control of rubber particle aggregation.

几个关键参数为：（1）使用纯化的小橡胶粒子，适宜浓度为在600 nm处的OD值为2.0～2.5；（2）用50 mmol/L Tris-HCl（pH7.4）配制0.5％碱性品红；（3）25 ℃条件下孵育30 min；（4）5 000 r/min离心5 min；（5）B乳清可作为阳性对照的蛋白质样品。

MATERIALS AND METHODS: The root tips of Vicia faba were treated with different concentrations of sodium sulfite and sodium nitrite (in the concentrations of 25;50;100;200;400 mg/L) with distilled water as control for four hours.The root tips of Vicia faba were stained with carbol fuchsin and examined. The micronucleus rate and the rate of chromosome aberration were determined within root tip cells of Vicia faba.

材料与方法：用不同浓度的亚硫酸钠和亚硝酸钠(25、50、100、 200、400 mg/L)分别处理蚕豆根尖4 h，并以蒸馏水作为对照，用石炭酸品红染液染色，分别观察、测定蚕豆根尖细胞的微核率和染色体畸变率。

The results were as follow:1 .The branches of N-glycans increased in serum of liver cancer patiens. Fucose structure increased and Fucoseα-1,6GlcNAc existed in serum of liver cancer patiens.

利用凝集素芯片分别对肝癌血清和健康人血清、正常肝细胞Chang\'s liver和肝癌细胞SMMC-7721膜蛋白、大骨节病人血清以及大骨节病对照血清和透明质酸治疗后血清进行了分析检测，发现：1。

Methods 41 chronic fulminate hepatitis B patients were enrolled into study and separated into survived group (31 cases) and death group (10 cases) according to their curative effects,and 20 healthy people and 30 chronic hepatitis B patients were taken as two control groups.

方法选取41例慢性重型乙型肝炎患者，依据治疗效果将其分为慢重肝好转组(31例)和慢重肝死亡组(10例)，并选择20例健康者和30例慢性乙肝患者作为对照。

Measles ; Fulminate ; Blank immunization ; Case control study

麻疹；暴发；免疫空白；病例对照研究

The results showed that protuberance of fiber cells from TM-1 ovule was first appeared at the funiculus crest, then spread from the chalazal cap to the micropylar, this situation was also observed in mutants with fiber or fuzz, such as Naked seed (N1) and Ligon lintless.

结果表明棉花纤维突变体胚珠纤维分化突起与对照TM-1同样首先发生在胚珠脊突处，然后是合点处及胚珠中部，最后在珠孔端。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐