双孔的

Objective:To evaluate the value of double contrast imaging in the diagnosis of sliding esophageal hiatus hernia.

目的：评价食管双对比造影在食管滑动性裂孔疝诊断中的应用价值。

Left-handedness in a inverted Y-type four-level atomic system［J］.

准Λ型四能级原子系统中的烧孔和光学双稳现象［J］。

For the symmetric diblock copolymers, the cross sections of the confining channels are of different shapes including regular triangle, square and ellipse.

对于对称双嵌段共聚物，研究中涉及的纳米孔截面包括正三角形、正方形和椭圆形。

Moreover drilling measures in different strata are pointed out,which are firstly drilling without slurry in part of silty clay layer,secondly adopting double-bottom bailing bit and bore directly and abandoning slurry with impact drilling rig in muddy clay layer,thirdly selecting short screw auger at low speed in gravel layer,finally choosing rock-socketed drilling tube in shaly sand layer.

指出旋挖钻机在不同地层中的钻进措施：部分粉质粘土层中可用清水或干孔钻进，淤泥质粘土层中采用双底捞砂钻头、直接用冲击钻机钻孔弃浆，圆砾层中采用短螺旋钻头低速钻进，泥质砂岩层中采用嵌岩钻筒钻进等措施，保证施工工期满足架梁节点要求。

Moreover drilling measures in different strata are pointed out, which are firstly drilling without slurry in part of silty clay layer, secondly adopting double-bottom bailing bit and bore directly and abandoning slurry with impact drlling rig in muddy clay layer, thirdly selecting short screw auger at low speed in gravel layer, finally choosing rock-socketed drilling tube in shaly sand layer.

指出旋挖钻机在不同地层中的钻进措施：部分粉质粘土层中可用清水或干孔钻进，淤泥质粘土层中采用双底捞砂钻头、直接用冲击钻机钻孔弃浆，圆砾层中采用短螺旋钻头低速钻进，泥质砂岩层中采用嵌岩钻筒钻进等措施，保证施工工期满足架梁节点要求。

All the water jacket furnace, steam production for 0.3 MPa, can fully meet the single-section of their own exploration of coal gasification and steam-fire, such as the use of closures, double Bell coal bins or electric drum automatically to the coal unit, simple structure, cloth Coal uniform; eccentric furnace grate, Cleaner effective and uniform air supply, gasification stability.

全水套炉体，自产0.3MPa蒸汽，能完全满足单段炉自身煤的气化和探火孔汽封等使用；双钟罩加煤箱或电动滚筒自动给煤装置，结构简单、布煤均匀；偏心炉篦，除渣效果好，送风均匀，气化稳定。

Result By using bicortical locked screws in the first and third hole of the proximal end of LISS, it could reach the best balance with the distal end, and also create the biggest force to resist torsional force compared with other groups.

结果 骨折近端螺钉第1、3孔采用双皮质固定在钢板和螺钉的固定平衡性及对抗扭转拔出方面明显优于其他各试验组。

115 caprine right femurs were taken and created to simulate AO/33-A3 fracture. All fracture models were fixed by the right 5 hole LISS Plate, which treated differently by using unicortical or bicortical screws in the proximal end of the LISS plate. And then withdrawal force and torsional force were given on them to make comparison.

取115根新鲜羊右侧股骨，造成股骨远端AO分型33-A3型骨折，并均采用5孔右侧股骨远端LISS钢板予以固定，在骨折近端固定螺钉单双皮质不同分布状态下，分别作拔出和扭转的生物力学对比试验研究。

The molecular sieve is prepared in the steps: at the room temperature, hexadecyl trimethyl ammonium bromide is mixed and dissolved with the sodium hydroxide, and is added with TEOS in dropping way, and simultaneously added with Me metal salt water solution and lanthanum nitrate solution in dropping way; the pH value of the mixed solution is adjusted by acetic acid to be 10 to 11, and is mixed for 1 to 2 hours after being stabilized; the sol is moved into a polyfluortetraethylene bottle to be heated and crystallized for 2 days in the oven at the temperature of 100 DEG C; after filtering, washing and drying for nights, and being calcined in a muffle at the temperature of 550 DEG C for 3 to 7 hours, the dual-metal-atom improved MCM-41 mesoporous molecular sieve is obtained.

该分子筛的制备为室温下，将十六烷基三甲基溴化铵和氢氧化钠混合溶解，搅拌并滴加入TEOS，同时滴加入Me金属盐水溶液和硝酸镧溶液并搅拌，用乙酸调节pH值至10～11，稳定后搅拌1～2小时，溶胶转入聚四氟乙烯瓶中在100℃下烘箱水热晶化2天，经过滤、洗涤、干燥过夜，马弗炉550℃焙烧3-7h，得双金属原子改性MCM-41介孔分子筛产品。

Methods:Ten adult mixed breed dogs(no significant individual difference)were made transverse fracture at bilateral iliopectineal crest 1.5 cm above the dome of acetabulum,which were fixed with ATMFS and steel plate respectively.The X-ray,macropathological observation and biomechanical test were analyzed at 1,2,4,8,12 weeks after operation.

选用10只成年杂种家犬，建立双侧髋臼臼顶上方1.5cm处的横形骨折动物模型，分别采用ATMFS前柱固定器和6孔重建钢板内固定，于术后1、2、4、8、12周各取2只动物，行X线检查、大体观察和生物力学测试。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。