无产的

Any of various deciduous, spineless shrubs of the genus Ribes, native chiefly to the Northern Hemisphere and having flowers in racemes and edible, variously colored berries.

醋栗任一种主要产于北半球的茶子属落叶无刺灌木，开有总状花序的花朵，结可食用的且色彩多样的浆果

Phenyl or m -tolyl selenoamides reacted with functionalized α-haloacetic acid in 1∶1 or 1∶2 molar ratio with no catalyst in various alcohols to undergo a selenium transfer reaction. This reaction in dif-ferent molar ratios furnished the same C—Se—Se—C coupling products with a special structure bis diselenide. A new and facile method for synthesis of such bis(alkoxycarbonyl-methyl) diselenides with the advantages of mild reaction conditions, high yields, easy availability of starting materials and good chemical selectivity was provided.

芳基硒代酰胺与氯乙酸在各种醇中无催化剂下以1∶1和1∶2的比例投入，发生硒转移反应，不同原料投入比下的反应生成了同一种C—Se—Se—C偶联产物——具有多功能团的二烷氧羰基甲基二硒醚，提供了一种新的合成二烷氧羰基甲基二硒醚的简便方法，且反应具有条件温和、产率高、原料易得和选择性好等优点。

With determining and comparing the result of the output of chlorine dioxide, the purity of chlorine dioxide, the rate of chlorine dioxide, the capacity of active chlorine and the output of chlorine generated by positive pressure type chlorine dioxide generator under different pressure, this paper draws the conclusion that the effect of pressure to aerogenesis efficiency of chlorine dioxide generator is indistinctive when the pressure is in the range of 0～0.6M Pa.

从化学平衡角度分析，压力增加会抑制正向反应的进行。为了验证实际效果是否如此，本文通过在不同压力下对正压式反应器 ClO2产量、纯度、得率及总有效氯产量等指标进行测定与比较得出，在 0～0.6M Pa的常用压力下，压力的变化对二氧化氯发生器的产气效率无显著影响。

Any of various long,snakelike,scaleless marine or freshwater fishes of the order Anguilliformes or Apodes,especially Anguilla rostrata of eastern North America or A.anguilla of Europe,that lack pelvic fins and characteristically migrate from fresh water to salt water to spawn.

鳗任一种长的蛇形的无鳞海洋或淡水鱼，尤指产于北美东部的扁平鳗鲡属或欧洲的鳗属，都缺少腹鳍，并且是典型的从淡水中迁居到盐水中产卵

Using modified apple fruit RNA extraction method based on CTAB by adding a step of using KAc and absolute ethanol to precipitate pectin, high-quality total RNA was extracted from the leaf and the inflorescence of jackfruit (Artocarpus heterophyllus Lam.). The yields of total RNA were 74.7 μg/g FW for the leaf and 31.6 μg/g FW for the inflorescence.

以菠萝蜜的叶片和花序为材料，采用改良的十六烷基三甲基溴化胺法（在原来的提取方法基础上，使用乙酸钾和无水乙醇预先沉淀果胶），成功提取菠萝蜜叶和花序的总RNA，平均产率分别为74.7μg/gFW和31.6μg/gFW。

In this thesis, investigations focused on heteropoly acids-catalyzed C-C and C-N bond formation reactions and the synthesis of xanthenediones and acridinediones under thermal conditions are described.1.12-Phosphotungstic acid has been used as an efficient,eco-friendly,and air- and moisture-stable catalyst to promote the direct dehydrative substitution of the hydroxy group of benzylic and allylic alcohols with variousβ-dicarbonyl compounds.

本篇论文主要描述了杂多酸催化下的C-C和C-N键的生成，以及无溶剂直接加热下合成十氢氧杂蒽二酮和9-芳基十氢吖啶二酮。主要内容如下：1。在磷钨酸催化下，1，3-二羰基化合物与醇能够顺利偶合，脱除一分子的水，生成烷基化的1，3-二羰基化合物。反应在甲苯中进行时，二芳基甲醇能与各类1，3-二羰基化合物反应，成率很高；但对于1-苯乙醇，只能得到很低的产率。

The metabolites were mainly aldehydes and acids when the level of inoculation was 10~9cfu/ml, however, alcohols, acids and esters were produced when the level of inoculation was 10~8cfu/ml. The optimal temperature and pH for production of 3-methyl butanal were 40℃ and 7.0, but NaCl and NaNO_2 inhibited its production.

接种量不同会导致代谢BCAA的产物不同：接种量为10~9 cfu/ml时生成相应的醛和酸；接种量为10~8 cfu/ml时生成相应的醇、酸和酯。S52菌株在40℃，pH 7.0，无亚硝酸盐和NaCl的情况下产3-甲基丁醛的量最多。

Results The result in 4 weeks showed that the laying rate of trial group and control group was 83.86%and 69.96% respectively; broken egg rate and malformed egg rate of trial group were 1.28% and 4.33%, that of control group was 1.69% and 1.19%; total egg number and hatchable egg number of trial hen were more than that of control hen 3.89 and 3.26 respectively ; average egg weight was not affected. E2 level in blood of trial group was higher than control group.

结果：在4周的实验期内实验组和对照组的产蛋率分别为83.86%和69.96%；破蛋率分别为1.28%和1.69%，畸形蛋率分别为4.33%和1.19%；实验组平均每只鸡的产蛋总数比对照组多3.89个、合格种蛋数多3.26个；药物处理对平均蛋重无显著影响；使用溴隐停能够提高鸡血液中的雌激素水平。

Any of several small,tailless,furry mammals of the genus Ochotona of the mountains of North America and Eurasia,resembling guinea pigs but belonging to the order of lagomorphs that includes the hare s and rabbits.

鼠兔鼠兔属中的一种毛茸茸的无尾小哺乳动物，产于北美和欧亚大陆的山中，貌似豚鼠但属于包括家兔和野兔的兔形目

Any of several small,tailless, furry mammals of the genus Ochotona of the mountains of North America and Eurasia,resembling guinea pigs but belonging to the order of lagomorphs that includes the hares and rabbits.

鼠兔鼠兔属中的一种毛茸茸的无尾小哺乳动物，产于北美和欧亚大陆的山中，貌似豚鼠但属于包括家兔和野兔的兔形目

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。