对照

METHODS: Randomized controlled trial was conducted. Sixtythree COPD cases in the tranquilization period from our respiratory clinic were divided into two groups and were given basic western medical treatment.

采用随机、对照、单盲的临床试验方案采用随机对照单盲临床研究方法，将在呼吸专科门诊入选的COPD稳定期患者63例随机分为治疗组（n=32）与对照组(n=31)。

Transiliac bone biopsy showed highly increased bone mass (+63% versus age- and sex-matched controls), a decrease in bone remodeling without evidence of active osteoblasts, and a severe decrease in the dynamic parameters of bone formation (mineralizing surfaces,-90% and bone formation rate,-93% versus age- and sex-matched controls).

经髂骨的活检示骨量显著增加（与年龄和性别匹配的对照者相比增加了63％），骨重建降低且没有发现破骨细胞活化的证据（与年龄和性别匹配的对照者相比：矿化面-90%，骨形成率-90%）。

A new trick using Trichogramma brassicae asvectors to transmit Dendrolimus punctatus cypovirus was developed (called"Biological missiles Dp-Ⅰ") to control the Dendrolimus punctatus in the field. Sincethen, we collect the single caterpillar from both areas used Dp-Ⅰand controlled areasevery year, and A nested-PCR-based assay for the detection of those samples wasdeveloped, The results showed that the positive reaction rate of the first year is 40～70％; and second year is 30～80％, on the other hand, the positive reaction rate of thecontrolled areas are 10～40％and 10～20％.

第二章对马尾松毛虫质型多角体病毒的流行病做了初步的调查，应用巢式RT-PCR方法检测从野外释放&生物导弹Dp-Ⅰ&的林区采集马尾松毛虫单虫样本，结果发现：2006年释放&生物导弹Dp-Ⅰ&的王福店林区的松毛虫体内DpCPV阳性率为40～70％，平均阳性率为58％，相应对照区的阳性率为10～40％，平均阳性率为24％；2005年释放&生物导弹Dp-Ⅰ&的丁家畈林区松毛虫体内DpCPV阳性率为30～80％，平均值也为58％，相应对照区的阳性率为10～20％，平均值为16％。

Tuberization of sense and antisense transgenic plants grown in vitro demonstrated that four of the ten sense plant lines had a significant increase while six of eleven antisense plant lines had a significant reduction in percentage of plantlets formed tubers and number of tubers per plantlet compared with the control.

对转正反义基因植株试管块茎形成的诱导结果表明，在10个转正义patatin基因植株中，有4个株系的结薯株率和单株结薯数比其对照明显增加，在11个转反义patatin基因植株中，有6个株系的结薯株率和单株结薯数比对照明显减少。

METHODS: We conducted a prospective, randomized, controlled,blinded, parallel-group, clinical trial with n = 73 patients(ASA physical status I-III) undergoing abdominal surgery undergeneral anesthesia 1.5 h with NMB using rocuronium.

作者设计了这项前瞻性、随机的、对照的、双盲的、平行对照的临床实验，选择 ASA I-III ，应用罗库溴铵神经肌肉阻滞，麻醉时间≥1.5h ，腹部手术的患者73例。

The results show that compared with the uninoculated pear fruit, the PPO activity of the pear fruit inoculated by the pathogen markedly increase in 48 hours after the inoculating treatment, the PAL activity is on the rise during the 120 hours after inoculation, POD and CAT activities reach a peak at 72h after inoculation, and the SOD activity of the inoculated treatment is also obviously higher than that of the contrast, which suggests that those enzymes are closely-related to pear fruit against Botryosphaeria berengriana f.sp.

结果表明：鸭梨果实中多酚氧化酶活性在接种轮纹病菌48 h内显著高于对照，苯丙氨酸解胺酶活性在接种120 h内一直呈上升趋势，过氧化物酶和过氧化氢酶活性在接种后72 h出现活性高峰，超氧化物歧化酶活性在接种后120 h内也显著高于对照，说明这些酶对鸭梨果实抵抗轮纹病密切相关。

The following results were found in the experiments: in pot experiments the diurnal variation of net photosynthetic rateof Lianmeng and Duizhao presented a single-peak curve, and the maximum value occurred at about 12:30, the diurnal variation of net photosynthetic rate of Changlongjie was unregular, the photosynthetic capacity of three treatments from high to low was Lianmeng ＞ Duizhao＞ Changlongjie, heavy metals stress had an inhibitory effect on photosynthesis of plant; There was a significant positive correlation between stomatal conductance and transpiration rate during the diurnal variation(Lianmeng 0.981**, Changlongjie 0.829*, Duizhao 0.87*).

结果表明：在白玉兰盆栽试验中，联盟和对照的Pn日变化呈&单峰型&曲线，峰值都出现在12：30左右，长龙界的Pn日变化无规律，3个处理的光合能力为联盟＞对照＞长龙界，重金属胁迫对植物的光合有抑制作用。

The fatty oil from the seeds of M. cochinchinensis was extracted with petroleum ether, and the saponification was carried out with potassium hydroxide. The unsaponifiable matter was isolated and purified by silica gel column chromatography, and the structures of their constituents were elucidated by means of IR, MS, 1H-NMR, and authentic chemicals.

石油醚提取脂肪油，氢氧化钾进行皂化反应，对不皂化部分进行硅胶柱色谱的分离和纯化，用IR，MS，1H-NMR等波谱技术和对照品对照等方法进行化合物的结构鉴定。

Molecular analysis and disease-resistance test The regenerated kanamycin resistant plants were analyzed by PCR andPCR-Southern reaction with the untransformed plants as negative control, plasmidDNA as positive control.

转基因植株分子检测及抗病性鉴定以未转化植株为阴性对照，质粒DNA为阳性对照，nptⅡ基因和chit42基因的特异引物进行PCR和PCR-Southern检测。

The bioassay indicated that some of them possess certain fungicidal activity against Botrytis cinerea, Gibberlla zeae, Rhizoctonia solani, Venturia nashicola at a dose of 50 μg/mL. The EC50 value of title compounds B-8、B-9、B-10、B-12 was reached 1.0, 0.2, 1.2 and 0.4 μg/mL against B. cinerea, the effect was approximated or better than pyrimethail and EC50 value of title compounds B-8, B-10, B-11 was reached 0.07, 0.2 and 0.05 μg/mL against G. zeae, the effect was better than carbendazim.

在50μg/mL浓度时，该系列化合物对番茄灰霉病菌Botrytis cinerea、小麦赤霉病菌Gibberlla zeae、水稻纹枯病菌Rhizoctoniasolani、梨黑星病菌Venturia nashicola菌丝生长均具有很好的抑制活性，其中化合物B-8、B-9、B-10、B-12对番茄灰霉病菌的EC50值分别为1.0、0.2、1.2、0.4μg/mL，接近或优于对照药剂嘧霉胺，B-8、B-10、B-11对小麦赤霉病菌的EC50值分别为0.07、0.2、0.05μg/mL，优于对照药剂多菌灵。

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