无沟的

In order to make a better study of the collection and utilization of rainfall so as to achieve the spatial and temporal redistribution of precipitation, the experiment adopted the method of fixed point observation and observed the outcomes by different surface processing techniques.

采取定位观测的方法，在山西省岚县香沟小流域研究集雨场的规划设计，地表处理技术，观测其集流量和集流效率，并对梯田作物有无补灌措施的生产效益进行对比试验研究。

Magneto Bearing is similar in its construction to the deep-groove ball bearing without filling slots.

磁轴承是在构造上类似的无装配槽的深沟球轴承。

While bilateral area lying along the intraparietal sulcus showed decreased activity during arithmetic with disruption, which might be related to the impaired arithmetic processing in dual task.

反之，双侧沿顶内沟区在心算受到干扰后的激活却显著弱于无扰时的激活，这或许是由加干扰后无法很好地完成心算造成的。

For class III malocclusion there are no significant differences in Ls-SGo,Li-SGo,upper lip length , lower lip length , Cm-Sn-Ls, upper lip angle of inclination and Li-H line . There are significant differences in lower lip angle of inclination , mentolabial sulcus angle , upper lower lip angle , H angle.

安氏Ⅰ类错合患者与安氏Ⅲ类错合患者相比，在上唇突点到SGo距离、下唇突点到SGo距离、上唇长、下唇长、鼻唇角、上唇倾角和下唇突点到H线距这些测量指标上无显著性差异；其他表示唇部形态和位置的指标，下唇倾角、颏唇沟角、H角、上下唇角都有显著性差异。

There is usually little or no progression, the EMG shows non-specific myopathic features and serum CK is normal or only slightly raised.1 The muscle biopsy may show characteristic ultrastructural abnormalities but these can be difficult to detect without specific histochemistry and/or electron microscopy that were not available in 1981 when our patient was biopsied.

查体提示：双侧眼睑下垂，易疲劳；轻度面部及颈部肌肉无力；舌肌无力并出现中央沟。无眼肌麻痹。肩部上肢带肌消瘦、明显无力，可见肩胛翼。腰部无力，行走时脊柱前凸，呈&鸭步&步态。坐位是如不用双手辅助，可能掉出椅子外。但可以依靠其脚趾和足跟站立。患者肺活量为正常的80%，心电图及超声心动图正常。CK水平为正常的2-3倍。

Combining the previous research on the pollen morphology, the present study indicated that: the plants of Stachyurus shared the common characters in pollen morphology and exine ultrastructure.

结果表明：旌节花属植物花粉形态的共同特征是：花粉粒球形或近球形，三孔沟；外壁具穴状纹饰，穴较细小；外壁内壁分层明显，容易区分，覆盖层光滑，几无附属物，柱状层明显，穿孔较少，不形成半覆盖层。

Methods Vaginoplasty with sigmoid was applied to 18 cases,and vulvar inguinal skin flap transfer to 5 cases.

2 3例先天性无阴道患者，采用乙状结肠阴道成形术治疗 18例，行阴股沟皮瓣移植阴道成形术治疗 5例，对两种手术方法的疗效、手术时间、出血量、术后住院时间和住院费用进行比较。

gap by law easy to use, easy to grasp, apply to the relatively high crown boneless resistance, resistance to a small adjacent teeth, the roots for the integration of the root or the root bifurcation cases, such as low lower the removal of impacted wisdom teeth; split crown law Requirements, flexibility in operation, more suitable for medium and low impacted significantly ditch and development, the root fork or a higher resistance to a larger adjacent teeth, and other cases, the lower-third-molar extraction.

结论增隙法操作方便、易于掌握，比较适用于高位、冠部无骨阻力、邻牙阻力小、根部为融合根或根分叉很低等情况下下颌阻生智齿的拔除；劈冠法要求条件高、操作灵活，比较适用于中、低位阻生且发育沟明显、根分叉较高或邻牙阻力较大等情况下下颌阻生智齿的拔除。

Space slugs are colossal, worm-like creatures that reside within the furrows and craters of asteroids and airless planetoids.

太空蛞蝓是巨大的蠕虫状生物，居住在小行星和无空气微型行星的深沟和陨石坑里。

On the basis of oil source correlation , the paper studied the organic microscopic component of the immature hydrocarbon source rock in santanghu basin.

本文在油源对比的基础上，对三塘湖盆地低熟源岩有机显微组分进行研究，认为盆地主力源岩芦草沟组主要生烃显微组份为腐泥无定型组。

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。