古果属茎枝细弱、叶子细而深裂、叶柄基部多膨突等特征，反映了该属的水生草本特征。
The delicate stems, thin and highly dissected leaves and swollen bases of the leaf stalks imply Archaefructus as aquatic and herbaceous angiosperms in nature.
他们建议，如果术者希望将上位相邻节段的多裂肌束去神经化降至最低，应利用经皮技术在头侧节段置入椎弓根螺钉。
They recommended that pedicle screw insertion at the cephalad level be performed percutaneously if one desires to minimize denervation of the multifidus complex at the cephalad adjacent level.
结论：上述数据解决了腰椎损伤后多裂肌横断面积是否迅速减少的疑问。
Conclusions. These data resole the controersy that the multifidus cross-sectional area reduces rapidly after lumbar injury.
乳胶水泥具有较好的抗脆裂性及较小的收缩性，能对尾管提供长期支撑，是多底井固井理想的水泥浆体系。
The gel cement has better embrittlement resistance and little shrinkage, and can provide long time supporting for the liner, thus it is an ideal select for multi-lateral cementing.
引入灰色系统理论的关联分析方法，对某矿山预裂爆破的震动效应进行了多因素灰色关联分析。
Based on association analysis with gray system theory, the multi-factor gray association analysis has been carried out for analysing the vibration effect of pre-splitting blasting in a mine.
经皮或应用旁正中小切口技术完成的微创脊柱椎弓根螺钉内固定术的原理是保留多裂肌功能。
The rationale for minimally invasive pedicle screw insertion into the spine, which can be performed percutaneously or via a paramedian mini-open technique, is to preserve multifidus muscle function.
数值模拟是高能气体压裂径向多裂缝延伸机理研究的重要内容。
Numerical Simulation of the multiple radial fracture propagation during the high energy gas fracturing is significant in the study of mechanism.
结论64层CT后处理图像的多平面重组(mpr)可以从不同角度、不同平面分析椎弓峡部裂的各种征象。
Conclusion MPR images of 64-slice CT can show the features of spondylolysis at different angles and planes.
小规模多段式注入清洁复合压裂液用于减少支撑剂在近井区域的堆积，从而降低了砂堵和支撑剂返排的风险。
Short sweeps of clean composite fracturing fluids are applied to mitigate proppant buildup in the near-wellbore area, thus reducing the risk of screenouts and proppant flowback.
目的：探讨椎弓峡部裂性和退变性腰椎滑脱多层螺旋ct特点及多平面重组技术的诊断价值。
Objective: To evaluate the value and appearances of multiplanar reformation (MPR) with multi-slices spiral ct in the diagnosis of the lumbar isthmic and degenerative spondylolisthesis.
结论为：射孔对水力压裂改造中的多裂缝现象具有重要的影响和支配作用。
It is concluded in this paper that the perforation will effectively influence and control the multi fractures during hydraulic fracturing.
Tsutsumimoto等使用MRI评估行后路腰椎体间融合术患者的多裂肌状况21。
Tsutsumimoto et al. used MRI to assess the multifidus muscle in patients treated with a posterior lumbar interbody fusion21.
目的研究多裂委陵菜的化学成分。
Aim To investigate the chemical constituents from Potentilla multifida L…
该程序操作简便，适用于多岩土层非均质任意形状滑裂面边坡稳定分析，具有边坡稳定确定性分析和逆可靠度分析两大功能，便于计算结果的比较分析。
The program can use the inverse reliability method and Limit equilibrium method to evaluate stability of slope with multilayer and arbitrary slip surface. It facilitates comparison of results.
考虑了单井径向流模型、垂直压裂模型及拟三维多井模型，并给出了相应的有限差分数值模型。
Moreover, single-well radial flow model, vertical stimulated fracturing model and quasi-3D multi-wells model are considered, and finite difference schemes for these models are formulated as well.
灰质内衬的脑裂是多小脑回的特征性表现。
The gray matter lining the clefts is characterized by polymicrogyria.
灰质内衬的脑裂是多小脑回的特征性表现。
The gray matter lining the clefts is characterized by polymicrogyria.
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