low quality

Quality formation and Fluoride content during brick tea primary processing;

砖茶初制过程中品质的形成与氟含量变化

A research on the time oriented quality lnfluence of the refrigertory beef;

冷库的贮藏时间对牛肉品质影响的研究

Investigation on properties of sweet potato starches and quality of starch-noodles;

甘薯淀粉性质及所制粉丝品质的研究

Senior middle school students character and manipulative ability in physics experiment;

高中生物理实验操作能力及品质的发展研究

Junior middle school students character and manipulative ability in physics experiment;

初中生物理实验操作能力及品质的比较研究

Effects of Different Fertilizer Combinations on Growth,Development,Yield and Character of Pluot to USA;

不同施肥组合对美国杏李生长发育及产量和品质的影响

Study on rice plant nitrogen metabolisms and their relationships with grain quality;

水稻品种氮素代谢特性与稻米主要品质性状关系的研究

Effect of cobalt on yield and grain quality of winter wheat;

施钴对冬小麦产量品质的影响

Effect of potassium on grain quality and yield of winter wheat;

钾素对冬小麦品质和产量的影响

Effect of regulated deficit irrigation on water use efficiency and fruit quality of pear-jujube tree in greenhouse;

调亏灌溉对温室梨枣树水分利用效率与枣品质的影响

Effects of different deficit irrigation periods on yield and fruit quality of tomato;

亏缺灌溉时期对番茄果实品质和产量的影响

Effects of different bee s pollination on yield and fruit quality of greenhouse tomato;

不同蜂授粉对设施番茄产量和品质的影响

Effects of Biogas Slurry on Quality and Yield of Hydroponic Cole;

沼液配施对水培油菜产量及品质的影响

Effect of Different Irrigation Methods on Plant Growth,Fruit Quality and Yield of Tomato in Greenhouse;

不同灌溉方法对日光温室番茄生长、品质和产量的影响

Study on relationship between the peroxidase and esterase isozyme and quality and yield in different peanut varieties(strains);

花生不同品种(系)过氧化物酶、酯酶同工酶与品质、产量的关系

Technical discussion on improvement of internal quality of cotton type polyester staple;

提高棉型涤纶短纤内在品质的技术探讨

The botanical character,fruit appearance and internal quality of four annona cultivars were studied in this paper.

研究了4个番荔枝品种的植物学特性及果实的外观性状和内在品质性状,结果表明:AP番荔枝植株生长健壮,果皮表面平滑、鳞目连成一片,果肉风味香甜、微酸可口,果实维生素C、可溶性固形物、果糖、葡萄糖和蔗糖含量均较高,且种子少、可食率高,是一个值得大面积推广的优良番荔枝品种。

We have studied the relationship between the distribution of organic components and the internal quality of four kinds of cigarettes made at Lanzhou,the results showed that when the cigarettes are higher in quality,the contents of organic components extracted,biological base,polarity fraction and less polarity fraction will be higher.

采用柱色层族组成分离方法,系统的研究了4种兰州烟烟丝中有机物分布特征,找出了不同档次兰州卷烟中系列有机化合物含量的差异,尤其是为吃味和香味做贡献的系列化合物相对丰度上的差异,提出了利用烟丝中可溶有机质含量的高低、利用烟丝中的生物碱的含量、利用样品的极性馏分、弱极性馏分在可溶有机质中的相对丰度作为判识卷烟内在品质以及检测卷烟优劣的方法。

Coal product quality and result of national supervison and spot check;

煤炭产品质量与国家监督抽查结果

Influence factors of PET product quality;

PET产品质量的影响因素

Ways to guarantee product quality of ureabased compound fertilizer;

稳定尿基复合肥产品质量的途径