未

One has proved that the viewpoint that the horizontal sidetrack is the most important technology for exploiting "large scale"unswept remaining oil in mature oilfields from three aspects.They are:(1) the horizontal sidetrack is the main technology for exploiting primary rich areas of"large scale"unswept remaining oil in mature oilfields;(2) the horizontal sidetrack can hit any rich area of"large scale"unswept remaining oil in reservoirs;(3) the cost of the horizontal sidetrack is more low in contrast with the vertical well and the conventional horizontal well.

从三方面论证了侧钻水平井是开采成熟油田&大尺度&未波及剩余油最重要的技术这一观点：①侧钻水平井是开采成熟油田&大尺度&未波及剩余油主要富集区的主要技术；②侧钻水平井可钻达油层中任何部位的&大尺度&未波及剩余油富集区；③侧钻水平井比钻垂直井和常规水平井费用低得多、更加经济。

The influence of untransformed austenite areas on the properties of austenitic-bainitic ductile iron is discussed.

该文用彩色金相技术显示了奥氏体—贝氏体球墨铸铁中未转变奥氏体区的组织，用定量金相研究了等温淬火温度和时间对未转变奥氏体区的影响，讨论了未转变奥氏体区对奥—贝球铁性能的影响。

The grafting effect and mechanism was charac- terized by FTIR,The heat stability of unvulcanized and dynamical mechanical proper- ty of vulc- lcanizates of SBR and SBR-g- were tested by TG and DMA respectively. medium-resistance properties of SBR and SBR-g- vulcan- izates were also investigated.The results showed that addition of St accelerated GMA grafting onto SBR and control the decomposition of SBR. When the conditions were GMA/St/DCP was 8/4/0.3 and grafting temperature was 160℃.

结果表明，St对提高接枝率、抑制SBR的降解起到了积极的作用；SBR中聚丁二烯的α－H和双键共同参与了GMA/St熔融接枝反应；当SBR/GMA/St/DCP=100/8/4/0.3、接枝温度为160℃时，SBR的接枝率较高（23.78%），SBR–g–硫化胶的拉伸强度和撕裂强度比SBR硫化胶的分别提高了119%和27.4%；SBR–（GMA--co-St）未硫化胶的Tg比SBR未硫化胶的高，而耐热分解性能优于SBR未硫化胶；SBR–g–硫化胶在低温条件下的刚性增大、弹性降低、具有较低的内耗，在常温下的阻尼性能较高，但弹性性能保持较好；SBR–g–硫化胶的耐热稳定性以及耐非极性有机溶剂的性能优于SBR硫化胶。

This time, the weighted F-value is 4.898, unweighted F-value is 2.957, that shows the weighted gap between class are more obvious that unweighted one, that is, the accuracy of the clustering algorithm is significantly higher than unweighted fuzzy clustering algorithm.

此时，加权的F值为4.898，未加权的F值为2.957，说明加权的类间的差距比未加权的明显，即该算法聚类准确率要明显高于未加权的模糊聚类算法。

Results there 9 species of rodents belonged to 4genus,2 family,2order were found and rattus norvegicus was predominated, followed by rattus flavipectus. four species of fleas belonged to 4 genus of 3 families were identified and the predominated species was xenopsylla cheopis. natural dead rat were not discovered; yersinia pestis and f1 antibody were not detected.

结果 在调查市县发现啮齿动物隶属2目2科4属9种，以褐家鼠为优势鼠种，黄胸鼠次之；食虫目动物1科1属1种；梳检鼠体检获鼠体蚤3科4属4种，以印鼠蚤为绝对优势蚤种；未发现自毙鼠；未分离出鼠疫杆菌及未检测出f1抗体阳性血清。

The screen at least partially circumscribes the non-perforated section of the base pipe, and the ribs extend longitudinally in an annular space between the screen and the non-perforated section.

筛管至少部分地围绕基管的未穿孔部分，且肋在筛管与未穿孔部分之间的环形空间内纵向延伸。筛管组件的柔性部件卷绕在肋周围并设置在筛管与未穿孔部分之间的环形空间内。

Frorn the agreed date or the expiry date of the agreed period for delivery which arise because he fails to give notice in accordance with B7, or because the vessel nominated by him flails to arrive on time, or is unable to take the goods, or closes for cargo earlier than the time notified in accordance with B7, provided, however, that the goods have been duly appropriated to the contract, that is to say, clearly set aside or otherwise identified as the contract goods.

买方未按照B7规定通知卖方，或其指定的船只未按时到达，或未接收货物，或较按照B7通知的时间提早停止装货，则自约定的交货日期或交货期限届满之日起，但以该项货物已正式划归合同项下，即清楚地划出或以其他方式确定为合同项下之货物为限。

Frorn the agreed date or the expiry date of the agreed period for delivery which arise because he fails to give notice in accordance with B7, or because the vessel nominated by him flails to arrive on time, or is unable to take the goods, or closes for cargo earlier than the time notified in accordance with B7, provided, however, that the goods have been duly appropriated to the contract, that is to say, clearly set aside or otherwise identified as the contract goods.

于买方未按照B7规定通知卖方，或其指定的船只未按时到达，或未接收货物，或较按照B7通知的时间提早停止装货，则自约定的交货日期或交货期限届满之日起，但以该项货物已正式划归合同项下，即清楚地划出或以其他方式确定为合同项下之货物为限。

The buyer must bear all risks of loss of or damage to the goods from the time they have passed the ship's rail at the named port of shipment; and from the agreed date or the expiry date of the agreed period for delivery which arise because he fails to give notice in accordance with B7, or because the vessel nominated by him flails to arrive on time, or is unable to take the goods, or closes for cargo earlier than the time notified in accordance with B7, provided, however, that the goods have been duly appropriated to the contract, that is to say, clearly set aside or otherwise identified as the contract goods.

买方必须按照下述规定承担货物灭失或损坏的一切风险：货物在指定的装运港越过船舷时起；及于买方未按照B7规定通知卖方，或其指定的船只未按时到达，或未接收货物，或较按照B7通知的时间提早停止装货，则自约定的交货日期或交货期限届满之日起，但以该项货物已正式划归合同项下，即清楚地划出或以其他方式确定为合同项下之货物为限。

Indirect immunofluorescence was used to observe the distribution of fibronectin in human oocyte and 2-cell to morulae embryos.

纤维粘连蛋白均匀分布在体外未受精人卵母细胞和受精后人胚胎早期发育的不同阶段的卵裂球表面，各时期的免疫荧光强度未见明显差别。透明带未见纤维粘连蛋白表达。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。