经用

Cutting standards of hacksaw blade and its performance characteristicsare analyzed.

分析了手用锯条切削标准及一般使用特点，经试验研究，提出适合不同切削要求的双层辉光离子渗W－Mo手用锯条最低合金元素含量。

The 3-dimension solid model of the 8th turbine rotor blade of some type aero engine is constructed in software UG, and the numerical calculation region of stream field in ECM is set up in special flow field calculation software FLUENT based on the principle of hydrodynamics. The distribution of 6-dimension forces is got after numerical calculation, and the equation between 6-dimision forces and interelectrode gap is set up.

基于流体力学原理，用UG造型出某型航空发动机8级涡轮转子叶片，用流场计算软件FLUENT构造电解加工中叶片的流场计算区域，经数值计算得到六维力的分布，并从理论上建立六维力与间隙之间的关系方程式，为后续试验研究提供了参考依据。

The results showed that camptothecin was extracted from the fruits of Camptotheca acuminata with 70% alcohol, the extracting solvent was concentrated, the liquid was extracted with saturated limewater and the camptothecin was adsorbed by AB-8 resin.

结果表明，以70%乙醇为提取液，浓缩后用饱和石灰水提取，提取液上AB-8树脂，洗脱条件经实验确定为用pH=2，浓度为90%的乙醇洗脱最佳。

It will be seen, however, that majolica can give significant indications regarding the use and disuse of certain instruments over the centuries as well as being a depositary for the conservation, uncontaminated by time, of images narrating past realities; we will see, for example, how during the Renaissance the lute and the vielle were widespread, as was the organ, whether portative or positive; we no longer encounter these in baroque majolica and it is above all the violin which we find in majolica of the Eighteenth Century.

人们会注意到，通过对陶器的观察，我们可以知道在那几个世纪的年代中，人们喜欢用哪些乐器，不喜欢用哪些乐器。陶器上还画有关于过去人们生活的写照，这些图画虽经岁月却依然清晰。例如，我们可以看到，在文艺复兴时期，鲁特琴和vielle (或叫 lira da braccio)非常流行，而可携带的或固定的风琴也很流行。在十七世纪的陶器中，我们就看不到这种情况了。而在十八世纪的陶器中，我们只能看到小提琴了。

In the measure amplification circuit, direct-current or low frequency signal come from a common sensor , conveying in only rhyme fashion way after amplification, In typical situation, serviceable signal maximum amplitude probable only have a certain number or amount millivolt, but common mode noise suppression may be up to several volt, as a result it is significant to the factor of the amplification input drift and noise etc for total precision, the amplification in itself common mode restraints features is also equally binding problem.

在测量用的放大电路中，一般传感器送来的直流或低频信号，经放大后用单端方式传输，在典型情况下，有用信号的最大幅度可能仅有若干毫伏，而共模噪音可能高到几伏，故放大器输入漂移和噪声等因素对于总的精度至关重要，放大器本身的共模抑制特性也是同等重要的问题。

Results: Muscone could pass through the normal rat's blood brain barrier into the brain and soon reached the highest peak and remained in higher concentration, and more slowly metabolized as compared with other organs.

用麝香的主要有效成分麝香酮，经大鼠尾静脉注射，按不同时间取其脑等内脏，制备组织样品，用气相色谱法测定其透过血脑屏障的脑内分布和其他脏器分布。

In the next Place, I was at a great Loss for Candle; so that as soon as ever it was dark, which was generally by Seven-a-Clock, was oblig'd to go to Bed: I remembered the Lump of Bees-wax with which I made Candles in my African Adventure, but I had none of that now; the only Remedy had was, that when I had kill'd a Goat, sav'd the Tallow, and with a little Dish made of Clay, which I bak'd in the Sun, to which I added a Wick of some Oakum, I made me a Lamp; and this gave me Light, tho' not a clear steady Light like a Candle; in the Middle of all my Labours it happen'd, that rumaging my Things, I found a little Bag, which, as I hinted before, had been fill'd with Corn for the feeding of Poultry, not for this Voyage, but before, as I suppose, when nt my Wall.

其次，我无法制造蜡烛，所以一到天黑就只得上床睡觉。在这儿一般七点左右天就黑下来了。我记得我曾有过一大块蜜蜡，那是我从萨累的海盗船长手里逃到非洲沿岸的航程中做蜡烛用的，现在早已没有了。我唯一的补救办法是：每当我杀山羊时，把羊油留下来。我用泥土做成一个小盘子，经太阳暴晒成了一个小泥盘，然后把羊油放在泥盘里，再弄松麻绳后取下一些麻絮做灯心。这样总算做成了一盏灯，虽然光线没有蜡烛明亮和稳定，但也至少给了我一点光明。

And the polar angle and the polar radius was represented into AutoCAD polar coordinate, the involute was drawn through the spline linear tool. And then, a section of the involute was intercepted with the diameters of the point circle and the root circle, used it as the tooth face of the spline. The involute tooth thickness was drawn using the diameter of the divided circle and the tooth-form was drawn through rotating, mirroring image and cutting.

根据DIN 3960渐开线花键的坐标值，用EXCEL函数功能计算出不同压力角下渐开线的极角和极半径，表示成AutoCAD极坐标并通过样条线工具绘制出渐开线，再用齿顶圆和齿根圆直径截取一段渐开线作为为花键齿面，并用分度圆直径绘制出渐开线齿剖面，经镜像和裁剪便可绘制出渐开线齿形。

Fluorescence in situ hybridization was carried out to confirm the integration of HBV DNA into male pronucleus and its replication with cell division in embryonic development.(Reverse transcriptase polymerase chain reaction,RT-PCR) and immunofluoresence assay were performed to observe the expression of the HBV gene in two-cell stage.

材料与方法：成熟雄鼠麻醉后双侧睾丸注射经脂质体DOSPER包裹的HBV质粒，手术后雄鼠与超排雌鼠合笼交配，用荧光原位杂变(Fluorescence in situ hybridization，FISH)分别检测单细胞胚和二细胞胚间期核中HBV DNA的存在与复制，用逆转录聚含酶链反应(Reverse transcriptase-polymerase chain reaction，RT-PCR)和免疫荧光方法检测HBV基因在二细胞胚胎中的表达。

O Lord our God, help us to tear their soldiers to bloody shreds with our shells; help us to cover their smiling fields with the pale forms of their patriot dead; help us to drown the thunder of the guns with the shrieks of their wounded, writhing in pain; help us to lay waste their humble homes with a hurricane of fire; help us to wring the hearts of their unoffending widows with unavailing grief; help us to turn them out roofless with little children to wander unfriended the wastes of their desolated land in rags and hunger and thirst, sports of the sun flames of summer and the icy winds of winter, broken in spirit, worn with travail, imploring Thee for the refuge of the grave and denied it – for our sakes who adore Thee, Lord, blast their hopes, blight their lives, protract their bitter pilgrimage, make heavy their steps, water their way with their tears, stain the white snow with the blood of their wounded feet!

主啊我们的上帝，帮我们用炮弹将对方的士兵撕裂成血淋淋的碎片，让他们美好的战场上覆盖著他们爱国者的苍白尸骸，让他们因疼痛而扭曲的伤者所发出的尖叫，盖过我们如雷的枪炮声。协助我们以狂焰摧毁他们卑微的家园，帮我们用无助的忧伤让他们未参与抵抗的寡妇心痛不止，协助我们逼迫她们带著小孩无家可归，褴褛饥渴，不受欢迎地流浪在荒芜土地的废墟当中。受到夏阳的光焰与冬季冰冷寒风的嘲弄，心灵破碎，因艰苦而憔悴，向汝恳求死亡之庇护而不可得。因为我们敬重主的缘故，所以您摧毁他们的希望，抹杀他们的生灵，拖延他们苦涩的行程，让他们步履沉重，泪水洒满行经之路，让白雪因受伤的双足而沾染血迹！

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。