改良的

The genomic DNA of 10 Actinidia species including 42 samples were extracted by the improved CTAB method.

以猕猴桃10个种42个样品叶片为试验材料，采用改良CTAB法提取基因组DNA，优化确立RAPD-PCR的反应体系。

In order to produce a good F1 hybrid variety in wheat, it is necessary to explore a new male-sterile cytoplasm and its nuclear restore gene. Four alloplasmic male sterile lines of wheat with Aegilops cytoplasm were developed to identify mitochondrial DNA variation that could potentially be associated with cytoplasmic male sterility.

在杂交小麦选育中，为了更好地利用细胞质雄性不育性，研究与不断挖掘新的不育细胞质类型及其对应育性恢复基因以改良现有不育资源至关重要。

If so, you need to take ameliorative measures!

如果真是这样的话，你就得改良自己的工作方式咯！

One month and six months after operation, anoscope examination revealed 6 cases with hyperplastic anal cushions near anastomosis in PPH group and 1 case in ligation group.

1个月、6个月两次肛镜检查 PPH组在吻合口近或远侧有隆起增生的肛垫组织6例，改良分段结扎组1例，两组均无症状与不适。

Improvements to the FB-7 fi ghter program will enable this older aircraft to perform nighttime maritime strike operations and use improved weapons such as the Kh-31P (AS-17) antiradiation missile and KAB-500 laser-guided munitions.

改善FB-7战斗机的计划将使这型旧飞机能够执行夜间海上攻击行动，并使用改良武器，例如Kh-31P(AS-17)反辐射导弹和KAB-500激光制导导弹。

Tri--1,3,5-triazin, an ashless and phosphorus free water-soluble compound, was synthesized and its structure was analyzed by infrared spectroscopy.

对摩擦性能优良的三嗪杂环进行水溶性改良，合成了一种无灰无磷水基润滑添加剂2 ，4 ，6-三(N，N-二羟乙基氨基亚甲基硫代)-均三嗪，并用红外光谱仪对其结构进行了分析。

Five methods namely improved CTAB method, CTAB-silica extraction method, SDS method, low pH extraction method with high salt and Zhou shiliang method were adopted to extract genome DNA from the leaves of Citrus aurantium. And three methods including ultraviolet spectrophotometer, agarose gel electrophoresis and SSR-PCR amplification were used to detect extracted sample DNA.

以枳壳叶片为试验材料，分别采用改良CTAB法、CTAB-硅珠法、SDS法、高盐低pH值法和周世良法5种方法提取枳壳基因组DNA，并通过紫外分光光度计、琼脂糖凝胶电泳及SSR-PCR扩增3种方法对所提取的DNA样品进行检测。

The ISSR markers were fitted to a 3:1 ratio of simplex and duplex segregation for the parental alleles, as the sweet potato was expected to be autohexaploid. Fourteen and nine quantitative trait loci linked to specific ISSR markers were detected for traits in (NH×TN27) and (TN27×NH), respectively. Twenty-two of these QTL-mapped markers were unique to the specific traits, and two were linked to two traits in each linkage map. These markers appear to be applicable to crop improvement.

ISSR标识因子符合六倍体亲本对偶基因simplex与duplex的3：1分离比。14与9个与专一性ISSR标识因子连锁之数量性状基因座，分别检测NH×TN27与TN27×NH之性状，其中22个数量性状基因座图绘之标志因子，对於特殊性状而言具有特殊性；每个连锁图谱中，有两个QTL图绘之标志因子与两个性状连锁，这些标志因子应可应用於作物改良。

In this article,the effects of biparental mass selectionand half-sib-S3 family combining selection(HS-S2:3)on the major traits of the two maize populations were studied.

研究了控制双亲混合选择和半同胞S2：3（HSS2：3）轮回选择对2个玉米基础群体P4C0和P5C0主要性状的改良效果。

A pot experiment was carried out in greenhouse to observe the yield, the absorption amount of cadmium and zinc of rape（ Brassia campestris L.）, and soil pH responses to different amendments applied in red soil, a typical soil of China.

采用盆栽试验，研究了施用改良剂—石灰、有机肥、海泡石对红壤上小油菜生物产量、镉锌吸收量、pH、吸收系数的影响。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！