经过试验的

Berthelot, the great French founder of modern synthetic chemistry, once stated in a letter to a close friend that the final experiments which led to his most wonderful discoveries had never been the result of carefully followed and reasoned trains of thought, but that, on the contrary,"they came of themselves, so to speak, from the clear sky."

法国现代合成化学研究的奠基人 Berthelot 曾在给密友的一封信中谈到，关于他的伟大发现的最终的验证试验其实并不是经过详细思考、仔细研究得来的结果，反而是这些试验自己来找他，就象从天而降一般。

Through directional selection in disease plot for 3 years, many disease-resistant descendants from XINHAI 14 and XINHAI 21 were obtained. The made the foundation for controlling fusariun wilt on long-staple cotton.

经过三年的试验，不仅进一步证明了该法的有效性，同时还成功的从新海14号和新海21号中，选出了几个抗病的品系，并在南疆重病田扩大繁殖和田间试验，从而为解决新疆长绒棉生产中严重的枯萎病问题打下了一定的基础。

This thesis proposes a stochastic analysis method of risk assessment for breakwater wave overtopping and stability by physical experiments and calculated results by design codes.

由于奥帆工程的安全问题关系到奥帆赛成功举办和国际声誉，因此其水工结构经过了有关单位的设计并通过了大量的物理模型试验和数值模拟验证，但无论是"设计规范"还是物模试验都没有考虑到复杂多变的海洋环境的不确定性及其对工程设计的影响可能会导致工程在使用的过程中出现意外，因此必须对工程的设计进行系统的风险分析。

The synthesis of 4,5,7-trichloroquinoline makes use of ethyl orthoformate, cyanoacetic ester and 3,5-dichloroaniline as the raw materials. The synthesis is completed by four steps: condensation, cyclization, hydrolyzation and chlorination. Several conditions concerned in the process are studied, the whole yield of 4,5,7-trichloroquinoline is about 53%, and the purity of it is about 96%. All the products are testified by IR, NMR and HPLC.

介绍了以3，5-二氯苯胺、原甲酸三乙酯和氰乙酸乙酯为原料，经过缩合、成环、水解和氯代4步反应制备4，5，7-三氯喹啉的方法，对相关的试验条件进行了考察，通过红外光谱、核磁共振谱和液相色谱对4，5，7-三氯喹啉的结构和纯度进行表征和测定，试验结果为4，5，7-三氯喹啉的纯度大于96%，总收率达到53%。

Individuals who have a positive history but a negative skin test tolerate penicillin-class antibiotics as well as they tolerate other antibiotics, according to AAAAI literature. Although the skin test is as safe as skin testing for other allergens, a "very low rate of resensitization" will occur after skin testing and reuse of penicillin. The skin test exposes the patient to an amount of penicillin that consists of 1/5,000th of that in a typical prescription.

根据AAAAI的文献指出，有盘尼西林过敏的病历却在盘尼西林测试中出现阴性反应者，对其他抗生素有著一样的耐受特质；虽然盘尼西林皮肤测试和其他的过敏原皮肤试验具有一样的安全性，盘尼西林在经过皮肤试验及使用过后，再度产生敏感的比率却非常的低；皮肤测试中，患中会暴露在正常盘尼西林处方剂量的5000分之一。

Therefore, the author excogitates some synthesis courses of new compounds including selenium and aspirin based on medicament chemistry and coalition principle. The new compound is named 5-5'-diselenium monoacetyl salicylic acid and ascertained by IR ,UV and MALDI-TOF-MS, and its structure is: OOHThe compound is inhibiting to sarcoma and ascites tumour of white mice by pharmacology experiments, so it is worth researching deeply.

为此，本文运用化学拼合原理，提出了几种既含硒又含乙酰水杨酸的化合物新结构的合成路线，经过多次理论分析和探索试验，得到一种预测的新的化合物，命名为5-5′-二硒单乙酰水杨酸，经红外、紫外、飞行时间质谱测定，证明该化合物的结构为：经药理预试验表明，该化合物对小鼠S_(180)肉瘤和艾氏腹水型肿瘤均有抑制作用，具有深入研究的意义。

Obtains the result below after 97 day-long raisingexperiments and 7 day-long digestions experiments:...

经过97天的饲养试验和7天的消化试验得出以下结果： 1、果寡糖对猪增重的影响：果寡糖组猪的末重比土霉素组提高了6.91％，差异显著(P＜0.05)。

To estimate the quantitative genetic parameters of nitrogen use efficiency, twenty maize single-cross hybrids with varying nitrogen use efficiency were tested at two locations in the North China Plain. At both locations, the hybrids were grown under high (HN, 225 kg/hm^2 N) and low N levels. And no N fertilization on the LN field have lasted two years.

为研究玉米品种氮利用效率相关性状的遗传参数，本试验选择20个具不同氮利用效率的单交种在华北平原的2个地点同期进行试验，氮肥处理设高氮（施氮，折合纯氮225 kg/hm^2）和低氮（不施氮，其地块经过连续2年耕种使氮素耗竭）2个水平。

However, this effect was only seen after a latency of 10 years (years 0–9: 0·92, 0·56–1·49, p=0·73; years 10–19: 0·60, 0·42–0·87, p=0·007), was dependent on duration of scheduled trial treatment and compliance, and was greatest 10–14 years after randomisation in patients who had had scheduled trial treatment of 5 years or more (0·37, 0·20–0·70, p=0·002; 0·26, 0·12–0·56, p=0·0002, if compliant).

但是这种效应只有经过10年的潜伏期才能体现出来(年数 0–9： 0·92， 0·56–1·49， p=0·73；年数10–19： 0·60， 0·42–0·87， p=0·007)，其取决于预定试验治疗和依从性的持续时间，并在随机抽样10-14年后在那些进行了预定试验治疗达5年或以上的病人身上体现最明显(0·37， 0·20–0·70， p=0·002； 0·26， 0·12–0·56， p=0·0002，如果依从的话)。

Howeer, this effect was only seen after a latency of 10 years (years 0–9: 0·92, 0·56–1·49, p=0·73; years 10–19: 0·60, 0·42–0·87, p=0·007), was dependent on duration of scheduled trial treatment and compliance, and was greatest 10–14 years after randomisation in patients who had had scheduled trial treatment of 5 years or more (0·37, 0·20–0·70, p=0·002; 0·26, 0·12–0·56, p=0·0002, if compliant).

但是这种效应只有经过10年的潜伏期才能体现出来(年数 0–9： 0·92， 0·56–1·49， p=0·73；年数10–19： 0·60， 0·42–0·87， p=0·007)，其取决于预定试验治疗和依从性的持续时间，并在随机抽样10-14年后在那些进行了预定试验治疗达5年或以上的病人身上体现最明显(0·37， 0·20–0·70， p=0·002； 0·26， 0·12–0·56， p=0·0002，如果依从的话)。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。