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The results show that the brush-plating coating is even and compact from section plane with good toughness and adhesion. The microhardness of the coating is 230.6HV0.5 which is 3 times of cast aluminium substrate. The wear resistance of the coating is 3 times of cast aluminium substrate. But the friction coefficient of the coating is 0.70 which is more high than that of the substrate, which is favorable for the fixed conjugate between the axis sheath and the axis seat of the gear-box.

结果表明,镀层厚度分布均匀、致密,镀层与基体界面清晰,未出现氧化物夹层,镀层的韧性和结合强度均较好;测得碱性铜及铸铝基体的显微硬度分别为230.6、74.2HV0.5;碱性铜的镀制使基体表面显微硬度及耐磨性均提高了2倍多,磨损状况明显改善。

The results indicated that the treatment of irradiation restrained the growth and differentiation of protocorm, especially to roots.The LD50 is 67.23Gy, because the protocorm is a integrate embryoids and higher tolerance was found. Ploidy analysis showed that most of aberrant seedlings go with the change of DNA and they were not euploid. When the plants trearted by irradiation, some of aberrant seedlings appeared stem forfication, and leaves appeared chlorophyll-deficient or green-white.,probably due to some genes' expression or closing.

结果表明:辐照处理对种胚原球茎的生长和分化有抑制作用,尤其是对根的抑制更为明显;由于种胚原球茎的完整性好,耐受性强,其辐照半致死剂量(LD50)为67.23Gy;流式细胞分析表明,大多数外部形态发生改变的植株其细胞内DNA的倍性发生了改变,出现相当多的非整倍体;此外,辐照产生的变异苗出现茎分叉、叶片缺绿或白绿相间等现象,可能是由于某些基因的表达与关闭引起的。

The most disturbing of the Geomancer's power, however, is his ability to separate his being into multiple selves, each as powerful as the original and making him potentially four times the trouble for the unlucky who encounter him.

然而土占师最扰人的能力是他能将自身的存在分离产生多个另体,每个另体的能力都与本体不相上下,让他成为惹上他的倒楣鬼的四倍大的大麻烦。

The results showed that N uptake of diploid andtetraptoid were lower than those of Hexaptoid and octoploid at over wintering and afteranthesis, but the capability was higher from jointing to anthesis. Diploid and tetraploid hadlower N distribution in leaf, and had higher N distribution in else vegetative parts at anthesis. And had lower N distribution in grain, higher N distribution in else vegetativeparts at mature. The N transfer amounts and its contribution to grain N accumulation ofDiploid and tetraploid were higher than Hexaploid, but the NTE and contribution of Naccumulation to grain N were lower.

结果表明,与普通小麦和小黑麦相比,二倍体和四倍体材料在越冬前和花后氮素吸收能力较低,在拔节到开花期间较高;开花期氮素在叶片中的积累较少,其他营养器官积累较多,成熟期营养器官中的氮素分配较高,籽粒中氮素分配较少;具有较高的氮素运转量,但运转效率比较低;花后营养器官氮素运转对籽粒氮素积累的贡献率较高,花后吸收氮素的贡献率较低。

Fertilization results in triploid or tetraploid individuals.

这是由于染色体在第一次减数分裂的后期没有分离而导致了多倍的而不是单倍体的配子,受精后产生了三倍或四倍体。

Patent product multi-function machine tool clamp (patent no.: 1) in 2004 0059684.9 ZL invented the idea is old-fashioned hard alloy welding type carbide cutter knife tools and the proportion and distribution, have become ends of the strip shape carbide cutter blades, improved tungsten carbide weld type can save carbide tools, save blade material three times.

专利产品多功能机夹车刀(专利号ZL:2004 1 0059684.9)发明理念是将老式的硬质合金焊接式车刀硬质合金刀头和刀体的比例与分布重新设计,变成两端均有硬质合金刀头的条状形刀片,改进后的硬质合金焊接式车刀可以节省硬质合金一倍,节省刀体材料三倍。

In the present study, the autotetraploid rice IR36-4X was treated with ion implantation technique by nitrogen ion beams and a polyembryonic seedling mutant (named as the IR36-Shuang) was identified in M2 generation. The mutant line was systematically investigated about the location of seedling in polyembryonic seedling, and the cytological initiation of the additional embryo in the 1R36-Shuang was observed and determined.

以低能氮离子束为诱变源,通过对同源四倍体水稻品系&IR36-4X&进行离子注入后在其第2代群体内筛选得到了1株具有多胚苗性状特征的突变株(IR36-双),对该突变株后代的多胚苗形态特征及其多胚来源进行了研究。

It was confirmed that facultative apomixes is existed in coffee species based on emasculating treatment, cyto-genetic observe and SSR marker detection.

细胞遗传学观察发现咖啡四倍体类型材料(2n=4x=44)的多胚和多胚苗中含有天然的单倍体胚和单倍体小苗(2n=2X=22);去雄处理后,可见子房膨大,其中5份材料获得了果实和种子,初步说明无融合生殖现象的存在;对小粒种品种间杂交F1代个体的SSR分析,发现多胚苗中存在与母本图谱相同且不携带父本特异带的后代以及携带双亲特异带的有性后代,表明子代有仅来自母本的无融合生殖个体分离出来。 3 建立了咖啡无融合生殖的分子鉴别方法。

There are many different races and ecotypes throughout its range, the more widespread being generally tetraploid with local diploid races particularly in the Mediterranean region.

在整个它的分布区有很多不同的比赛和生态型,更多的广布的特别是在地中海地区一般作为四倍体具本地二倍体比赛。

Xaploids found in Sichuam on genetics and polyploid breeding in mulberries .

在四川发现大量的六倍体,这时桑树的遗传学研究和多倍体育种都具有重要的意义。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。