根

The method is based on the oxidation-reduction reaction between potassium iodide and nitrite.

建立了碘化钾与亚硝酸根氧化还原反应生成游离碘使异硫氰酸荧光素荧光猝灭测定痕量亚硝酸根的新方法。

Fertilizing date presented obvious effects on root growth and distribution. Fertilization after watering was more primitive to the root in up-soil layers than before watering. Fertilization of Ca-Mg was positive to the increase of root in 5-15cm soil layer, but negative to that in the surface layer. Both fertilization date and Ca-Mg fertilizer affected root vigor obviously.

施肥时期对根系也具有明显的影响，与灌水前施肥相比，灌水后施肥有利于促进根系在上层土壤中的生长和分布；钙镁肥的施用能增加5~15cm土层根重，但对表层根的生长不利，施肥时期和钙镁肥施用与否对根系活力的影响也较大。

According to the root type division the Chinese Dwarf cherry belongs to the inductive type of root primitive body,From above several aspects we can see that the mechanism of soft-wood cutting is : Under the condition of without root primordium ,the root primordium appear from cambium by using rooting accelerator under the condition of well temperature ,humidity ,and light, then the root primordium breaks through the cerebral cortex, finally extends to outside .

从以上几个方面我们可以看出，欧李嫩枝扦插生根繁殖的机理为：欧李嫩枝在无根原体存在的情况下，经过生根剂的处理在合理的温度、湿度及光照条件下，由其形成层部位产生根原体，随后根原体突破皮层，伸向外部。

The amylase expression increase and be as a sign of root primordium development at 60 h.

酯酶在根原基诱导时活性很低，而在根原基发育时则活性增强。5。

The tolerance of seawater fish Japanese sea bass and black rockf ishto pH and alkalinity is studied through the experiment of acute toxicity. The median lethal concentration values are obtained by the method of probability unit. The safe concentrations of alkalinity, C032- and HC03- are obtained. The signification of pH and alkalinity is estimated with analysis of variance.

本文应用急性毒性试验方法研究了海水鱼类鲈鱼黑鲪对pH、碱度、二氧化碳体系各分量的耐受性，应用概率单位法求得半致死浓度，并得到了碱度、碳酸根、碳酸氢根等的安全浓度，应用方差分析评价了pH和碱度致毒作用的显著性，探讨了不同pH、碱度范围的主要致死因子。

Not made for chewing. Extending down in front of a fly's headis a tube called a proboscis.

部的前端，有一根可以向下伸展的管子，这根管子称为喙。

Prop root An adventitious root, arising from one of the lower nodes of the stem close to the soil surface, found at the junction of stem and soil that grows dowm to the ground and gives additional support to the stem, as seen in maize.

支柱根：一种不定根，起源于接近土壤表面的茎上位置较低的节部。向地生长，插入土壤，并对茎提供一定的支撑。如玉米的支柱根很常见。

However, the situation reversed in roots uptaking PAHs. With close lipid concentrations, leaves with pubescence or rough surface were found to have stronger capability in uptaking PAHs than the others, and the capability of the fibre was stronger than the taproot.

脂肪含量相近时，表面粗糙或具有细密绒毛的叶片富集PAHs的能力较强，须根系根吸收PAHs的能力强于直根系根。

If your new tube lacks the grounding strap, pull it off the old tube and screw it in place on the replacement tube.

如果您的新管没有这根接地的金属带，一定要用这根旧管子上的金属带并安装在新管子上。

Bobby. Beck is Bai Bo's circus wagon Hercules, his performance very the welcome that suffers an audience, a very thick punty, he uses handle gently light so pull broke off, think people breaks off a sugar cane is so deft.

博比。贝克是伯勃马戏团的大力士，他的表演很受观众的欢迎，一根很粗的铁棒，他用手轻轻那么一扳就折断了，就想人们折断一根甘蔗那么轻巧。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。