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Therefore, established a finite element Stable response model of a horizontal whole string and carried out t the safety varied frequency of gas well after researched the natural seriously transversal vibration and compressional vibration frequency range of tubing string with packer and packerless, so that it make the tubing string to avert the covibration frequency range of natural gas excited.

本文认为以某井高产量稳产时,天然气对油管柱的外激励为简谐激振,因此研究中建立某水平井全井段油管柱稳态响应的有限元力学模型,并获得了在无封隔器和有封隔器情况下的油管柱发生严重横振和纵振的频率范围,提出了天然气安全调节频率范围,使油管柱避开可能引起严重破坏的天然气激励频率区域。

There occurred red tides of Gymnodinium sp.

在这个围隔实验的两个围隔体中,分别发生了一种裸甲藻(Gymnodinium sp。

Connective The parenchymatous tissue that joins the two lobes of the anther and contains the vascular strand.

药隔:花药左右两侧花粉囊之间由薄壁细胞构成的基本组织,药隔中的维管束与花丝维管束相连。

The effect of different fillers such as hollow glass microsphere, pulverous coal ash and foam polymer on water insertion loss of sound isolation rubber material were studied.

本文研究了空心玻璃微珠、粉煤灰、发泡聚合物等填料对阻尼隔声橡胶材料水中插入损失的影响,发现橡胶中加入隔声填料可以明显提高水中插入损失。

Noise can be reduced by about 2 dB by using oil-resistant rubber isolator to reduce solid-borne sound transmission;the setting-up of semienclosed noise barriers can not only reduce the work region's noise of workshop by 13 dB,but also adapt to the gas's characteristic involved with H2S,CO,and other poisonous components without supplied m...

通过选用耐油性好的橡胶隔振器减少固体传声,可降低噪声约2 dB;设置半封闭式机组隔声屏障可降低生产车间工作区域内的噪声达13 dB,并且适合瓦斯发电气源中含有H2S、CO等有毒有害气体的特点,不需增加强制通风措施;在生产车间四周墙壁和顶棚上敷设吸声体,最大可降低空间噪声8 dB;根据瓦斯发电机排烟噪声频谱特性设计的阻抗复合式消音器的消音量可以达到30 dB以上。

Noise can be reduced by about 2 dB by using oil-resistant rubber isolator to reduce solid-borne sound transmission; the setting-up of semienclosed noise barriers can not only reduce the work region's noise of workshop by 13 dB, but also adapt to the gas's characteristic involved with H2S, CO, and other poisonous components without supplied mandatory ventilation; locating the noise absorbers on the walls and ceiling of workshop can reduce noise by 8 dB; the exhaust silencer's elimination volume can reach above 30 dB which is designed in accordance with the exhaust noise spectrum characteristic of gas-combustion generator. By the combination of these measures, the noise of the gas- combustion generator will be under effective control, so that the gas power plant's noise pollution problems can be resolved.

通过选用耐油性好的橡胶隔振器减少固体传声,可降低噪声约2 dB;设置半封闭式机组隔声屏障可降低生产车间工作区域内的噪声达13 dB,并且适合瓦斯发电气源中含有H2S、CO等有毒有害气体的特点,不需增加强制通风措施;在生产车间四周墙壁和顶棚上敷设吸声体,最大可降低空间噪声8 dB;根据瓦斯发电机排烟噪声频谱特性设计的阻抗复合式消音器的消音量可以达到30 dB以上。

For the collapse syndrome, moxibustion on ginger or moxibustion on salt therapy should be used, and the points of Zhongwan, Qihai or Zusanli should be cauterized day and night.

闭证刺血疗法,重刺激井穴、人中为主;脱证以大灸法隔盐、隔姜灸中脘、气海、足三里日夜灸之不停,从未死过人,瘫痪恢复也很快很好,很少有生活不能自理的。

If the skin has become thoroughly wet or one has perspired a great deal, sunscreens should be applied as often as every 30 to 60 minutes to maintain a reasonably high degree of effectiveness.

误译:如皮肤已完全潮润,或大量排汗,则应每隔30分钟或60分钟使用遮阳屏幕,以保证适当的高效。改译:如果浑身湿透,或者大量排汗,应每隔30分钟到60分钟涂用一次防晒油,以保持理想的防晒效果。--《翻译批评散论》(132)评析:误译中的&遮阳屏幕&令人费解, sunscreens 确有&遮阳帘&和&遮阳板&一类的含义,但它还有&防晒油&的含义。因其多义,导致误解。

The length distribution of sliver fiber under conditions of different feed plate gauge was tested by USTER AFIS and fiber length distribution in taker-in droppings and card strips was tested by cotton fiber length analyzer.

用USTER AFIS单纤维测试系统,对不同给棉板与刺辊隔距条件下的生条纤维长度分布进行检测,用罗拉式纤维长度测量仪对不同给棉板与刺辊隔距的刺辊落棉、盖板花中的纤维长度分布进行了检测。

Study on fiber length distribution of taker-in droppings and card strips;2. The length distribution of sliver fiber under conditions of different feed plate gauge was tested by USTER AFIS and fiber length distribution in taker-in droppings and card strips was tested by cotton fiber length analyzer.

用USTER AFIS单纤维测试系统,对不同给棉板与刺辊隔距条件下的生条纤维长度分布进行检测,用罗拉式纤维长度测量仪对不同给棉板与刺辊隔距的刺辊落棉、盖板花中的纤维长度分布进行了检测。

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And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47:5 法老对约瑟说,你父亲和你弟兄们到你这里来了。

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