测定类型

The method presented in the paper can be used to measure synthetic heteros is of multi-character of other types of cross experiments of maize and other cr ops.

本文所提出的方法也可用于其它类型玉米杂交试验和其它作物杂交试验多性状综合杂种优势的测定。

Author was menstruated content of boron and researched the status of lack of Boron and researched relativity of its Influencing facto, the results showed that the average content of available boron in the yellow soil was 0.39±0.27 mg/kg, 80 percent of its was under 0.5mg/kg which was lack for boron and 17.44 percent of its was under 0.2mg/kg which was especially lack for boron; The distribute frequencies of available boron contents of yellow soils in Chongqing was dispersedly, its range of 0.07mg/kg to 1.99mg/kg. The diversity of different zoology area was distinct. The result of pertinence analyses showed that available boron contents had correlativity with the pH(r=0.181** n=281) and CEC（r=0.124** n=281 and It had correlativity with Organic matte When the content of organic matte is high; in addition, soil granule、clime was the Influencing factor of availability of boron in Yellow Soils in Chongqing.

笔者通过调查取样对重庆市黄壤硼的含量进行测定并分析了缺硼的程度，对其影响因素进行了相关性分析，研究结果表明：重庆市黄壤有效硼的平均含量为0.39±0.27mg/kg，其中近80%的土壤样品有效硼含量低于0.5mg/kg，属于低硼或缺硼土壤，还有17.44%的土壤样品有效硼含量低于0.2mg/kg，属于极度缺硼的土壤；而有效硼含量的分布频率比较分散，变幅较大，从0.07mg/kg~1.99mg/kg，变异系数达到69.41%，不同生态类型区土壤有效硼含量的差异十分明显；而相关性分析结果表明：土壤有效硼与土壤pH值(r=0.181** n=281)和CEC（r=0.124** n=281呈正相关，在有机质含量较高的条件下与其相关性也较为显著（r=0.347** n=90，而土壤质地以及气候也对重庆市黄壤硼的有效性有很大的影响

This method can be applied to determine pigments in tobacco leaf in the course of curing with satisfactory result.

该方法应用在不同类型烟草中的天然色素含量测定，取得满意结果。

We determined the composition of soil aggregates with dry sieved method, and analysed fractal dimensions of soil aggregates and the effect factors.

根据植被和土壤类型，从黄土高原不同地域分别采集22个0~20 cm土层土壤样品，利用干筛法测定其结构体组成，分析土壤结构体分形维数及其影响因子。

According to the morphological characteristic variations,4 body measurements,i.e.withers height,body length,chest girth and fore shin circumference were measured on the spot,and 25 items in 11 types of appearance character were describedand their phenotype frequencies were computed,14 coat color were classified andtheir frequencies were computed.

根据形态学特征的变异特点，对17个山羊群体的四项体尺即体高、体长、胸围、管围进行了现场测定，对11个类型的25项外形特征指标进行了分类描述和表型频率估计，对14种毛色类别进行了表型分类和频率估计。

The experimental results for the recovery of mixed and individual alkenes

方法的准确度实验表明，烯烃单体和混合烯烃的回收率均在96.5%-101%，说明该方法可用于汽油中烯烃含量的测定，同时应用该方法可对汽油中烯烃碳数、类型分布及含量有直观而清晰的认识，可为相关的催化剂及工艺研究提供丰富且准确的组成信息。

Methods Mean corpuscular volume in peripheral blood and mean corpuscular volume of urine erythrocyte of 124 patients with glomerular or nonglomerular hematuria were detected by Culter J T2IR whole blood analyzer.

采用Coulter J T2IR 全血细胞分析仪测定53 例各种类型肾小球性疾病和71 例非肾小球性疾病病人的外周血红细胞平均体积和尿中红细胞平均体积，以16 fL 为界值判定血尿来源。

Concentrations of HCH ranged from non-detectable to 19.63?ng·g~(-1) with an average of 0.50?ng·g~(-1); and coencentrations of DDT ranged from non-detectable to 176.01?ng·g~(-1) with an average of 4.42?ng·g~(-1), respectively. The concentrations of other Organochlorinated pesticides such as heptachlor, aldrin, and dieldrin were not detected.

采用气相色谱分析方法测定了官厅水库周边地区土壤样品中HCH、DDT、七氯、艾氏剂等多种有机氯农药的含量，采用数理统计方法研究了不同土地利用类型、不同采样方位与土壤中有机氯农药含量的关系。

The determination of high molecular weight impurities which existed in cefotaxime, ceftriaxone and ceftazidime and the influences of different ion-pair reagents; pH value of the eluants and the flow rate on the chromatographic column were discussed in detail.

以建立头孢噻肟、头孢曲松、头孢他啶中高分子杂质含量的快速测定方法为目的，对不同离子对试剂、洗脱剂pH、洗脱剂类型、离子对浓度、洗脱速度等因素进行了研究。

An experiment was conducted to measure the carbonaceous gas CO2, CO, C(subscript xH released from 22 types of fuels (9 species of arbors, 7 species of bushes and 6 species of herbages) in Daxing'an Mountain during the combustion process sing the method of field investigation combined with indoor combustion environment control. The emission factors of different gases were calculated.

采用外业调查和室内控制环境实验相结合的方法，对黑龙江省大兴安岭地区22种（9种乔木、7种灌木和6种草本）可燃物类型燃烧过程中释放的含碳气体CO2、CO、C(下标 xH进行了测定，并计算了不同气体的排放因子。

John Robbins lives with his family in Santa Cruz, California.

约翰罗宾和家人居住在加利福尼亚州的圣克鲁斯县。

The international background is mainly the economic ties among different nations tented to be widen and deepen at the peace and development times.

国际背景主要是和平与发展时代条件下的世界各国经济贸易联系的日益加深。