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The beams from the lensed photonic crystal fibers have similar behaviors as Gaussian beams, but the data gotten from the measurement and the theory are still discrepant.

光子晶体光纤射出的光在自由空间的传播特性上与高斯光束有类似的行为,但量测的数据与理论预测的数值仍有差异。

Based on the investigated data in the west sea area of continental shelf of the East China Sea (25°30'-33°30'N, 128°00'E) from 1994 to 1996 and from 2004 to 2006, the quantity distribution and growth characteristics of Loligo edulis was studied. The results showed that the capture rate of Loligo edulis is 20.3 kg/h in summer, which is the fastigium of quantity distribution in a year, the capture rate is 5.1 kg/h in spring and autumn, and it's became the lowest in winter.

根据1994-1996年和2004-2006年东海大陆架25°30'-33°30'N,128°00'E以西海域调查资料,对剑尖枪乌贼的数量分布和生长特性进行研究,结果表明:剑尖枪乌贼渔获量高峰期出现在夏季,其资源密度指数达到20.3kg/h,其次是春、秋季,均为5.1kg/h,冬季最低。

We drawn the predicted surface maps with the Ordinary Kriging method and illustrated in the time order to provide a visible presentation of the spatio-temporal distributions. By analyzing those maps, we found that the spatial distribution of spiders in the paddy field was similar to that of macropterous SBPH and larval SBPH, and was more similar to larval SBPH, and showed an obvious pursuing phenomenon between them, while the pursuing had a close relationship with the temporal dynamics of SBPH number. But the pursuing phenomenon was complex and influenced by factors such as the weather, the environmental conditions in paddy fields, other enemies of SBPH and other foods of spiders.

用普通克立格方法作出空间分布图,在时间序列上进行比较分析,得出稻田蜘蛛与灰飞虱成若虫的空间分布均有相似性,尤其与若虫相似性更强,表现出比较明显的空间跟随现象,且空间跟随现象与灰飞虱虫量的消长有密切的关系,但是由于天气、稻田环境、灰飞虱其他天敌以及蜘蛛其他猎物的存在等因素的影响使得其空间跟随又有着相当的复杂性。

Regard hydrochloric acid of Mahuang as the index, adopt HPLC to determine the content of the hydrochloric acid of Mahuang , whether through is it test excellent to elect the best technology to hand in.

以盐酸麻黄碱为指标,采用高效液相法测定盐酸麻黄碱的含量,通过正交试验优选出最佳工艺:取原药材饮片,加10倍量的60%乙醇,回流提取三次,每次105min的制备工艺最佳。

Bycomparison,a selection index,containing fleece weight,shorn body weight,fibrefineness,fibre densityand content of medullated fibre,was developed

经指数制订和比较,筛选出一个包括剪毛量、剪毛后体重、纤维细度、纤维密度和有髓毛含量等5个性状的综合选择指数

Yelodysplastic syndromes,as a disease of dyspoiestichematopoietic stem cell,have a disturbance of DNA synthesis,cellsdifferentiation and some leudemic characterization.It's marrow cell displaylike megaloblastic change,so we postulated that folate receptor have adifference of both quantitative and quanlititive in megalolbastic anemia,MDSand lenkemia.

DS作为异常干细胞克隆性增生疾病,在DNA的合成及细胞分化异常,表现出白血病的某些特征和骨髓细胞具有不同程度的巨幼变,因而我们推测巨幼贫、白血病和MDS的叶酸受体不但有量的改变,而且有质的变化。

The samples were extracted with acetone by blending and the extract was partitioned with methenyl chloride. The extracts were cleaned up by a column of silica gel.

样品以丙酮提取,三氯甲烷萃取,硅胶柱净化,液相色谱测定,最小检出量为0 5×10-9g。

The direct synthesis of dimethyl carbonate from methanol and carbon dioxide using another basic catalyst, potassium methoxide in the presence of CH〓I as a promoter was investigated.

除了用甲醇于二氧化碳合成DMC以外,我们又对以甲醇与尿素为原料合成DMC的路线进行了尝试,筛选出了两个离子液体Et〓NHCl-FeCl〓和emimBr-ZnCl〓作为用甲醇与尿素为原料合成DMC的高效催化剂,研究了各种反应条件如原料的比例、催化剂的添加量、反应的温度等对反应的影响,得到了所报道的在间歇釜中经一步反应合成DMC的最高产率(27%和26%左右)。

The RRO disturbance has been estimated on the 3000th track of a microdrive according to the proposed method.

在一款微型硬盘驱动器上进行了实验研究,测试出第3000号磁道的位置误差信号,根据估算方法推导出RRO扰动数据量。

The comparative experiments of rearing Penaeus vanname larvae fed the microencapsulated diets and micro-partical diets of "OK" brand and a searies of microgranular diets of "Bonasse" brand was performed. Two brands of diets are respectively formulated with rotifera at percentage of 70%, 80%, 90% and 100%. During the nursery period, the water quality factors such as the concentrations of NH3-Nt, NH3-Nm, NO2-- N, COD and main planktons were tested to find out their change regulation and the influence on survival rates and metamorphic rates of shrimp larvae.

本文利用欧开牌微胶囊饲料、微粒饲料和博尚牌系列微型饲料作为对虾育苗饲料,分别以70%、80%、90%和100%的比例与卤虫活饵料配合来培育凡纳对虾幼体,通过对凡纳对虾幼体有关生长发育指标的对比以及对育苗期间水中总氨氮(NH_3-N_t)、非离子氨氮(NH_3-Nm)、亚硝酸盐氮(NP_2~--N)、化学耗氧量和主要浮游生物等水质因子进行检测,找出它们的变化规律并比较上述饲料对幼体生长发育、成活率、变态率和育苗效果的影响。

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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。