有的人微笑收发自如，就像可伸可缩的橡皮筋一样。
A smile is snapped back after using, like a stretchable rubber band.
这具望远镜可缩套到原来的一半大小。
本分析结果促使八一矿决定采用可缩金属支架。
This analysis has lead to the use of the "Yielding Metal-Prop" at "Ba-Yi" Hydranlic Mine.
介绍了U型钢可缩性支架缩动后的内力计算方法。
This paper gives the method of internal force calculation of U steel supports.
伸缩性、可缩性、易燃性是天然物体倾向性的范例。
Elasticity, solubility, inflammability are paradigm cases of dispositions in natural objects.
本文提出采用有限元法对U型钢可缩性支架进行计算。
In this paper, the finite element method for U shape yieldable steel ribs is presented.
研究成果可供可缩性钻井井壁结构的设计和应用参考。
The results of the study can be used as a reference for the design and application of retractable drilling shaft lining structure.
有的人微笑起来收放自如，就像可伸可缩的橡皮筋一样。
A smile that snapped back after using, like a stretched band.
有的人微笑起来收发自如，就像可伸可缩的橡皮筋一样。
A smile that snapped back after using, like a stretched rubber band.
它是一种在煤矿井下压力出现变化时不变形的可缩性风门。
The retractable air door has no deformation when the downhole pressure of a coal mine changes.
借助于这一结果，本文证明了每一个可缩多面体均是个绝对收缩核。
Using this result we prove in this paper that every contractible polyhedron is an absolute retract.
结论：药物流产后服用祛瘀缩宫汤，可缩短出血时间，减少出血量。
Conclusion: Administering Quyu Suogong Tang after abortion by drugs can shorten bleeding time and reduce bleeding volume.
综述了3连通图中可缩边和可去边的性质以及它们在图中的分布情形。
This paper presents a survey on the properties and distributions of contractible edges and removable edges in 3 connected graphs.
型钢可缩性支架的缩动与否，取决于支架卡缆预紧力及搭接部分两端的内力。
Whether an u-steel yielding support could yield depend on the pre-screw forces of the camps and the internal forces of both ends at the u-steel overlap parts.
缩动是U型钢可缩性支架的重要特性 ，按支架缩动后进行强度计算是必要的。
Yielding is an important characteristic of U steel supports. It is necessary to consider the internal force caused by the yielding of the U steel supports in the strength calculation.
可缩量、理论值与现场沿空留巷试验测结果相同，说明了这种力学模型的正确性。
The shrink quantity, theory value and test result of retaining roadways along goaf are the same, this shows the exantness of the mechanics model.
针对地层沉降条件下煤矿立井井壁的破坏机理，提出了一种新型可缩性钻井井壁结构。
Aiming at the fractured mechanism of mine shaft lining under the condition of stratum subsiding, a new type of retractable drilling shaft lining structure was proposed.
在H-空间中引入了可缩闭集的概念，得到了一个与C-KKM定理相平行的广义KKM定理。
In this paper a concept of contractible closed set is introduced in H-spaceand a generalized KKM theorem (Theorem 1)which is parallel with C-KKM theorem isobtained.
本实用新型公开一种煤矿巷道通风系统的风流控制装置，尤其是一种矿山可缩式风流控制风门。
The utility model discloses an air flow control device of a coal mine lane ventilation system, in particular relates to a mine retractable air flow control air door.
推导出了中等稳定顶板条件下计算支护系统所需阻力和可缩量的公式，并进行了相应的模拟实验研究。
The formula of calculation of support system resistance and yieldability under condition of medium stable roof is derived and proved through eguivalent model testing.
在薄煤层工作面中使用单体液压支柱，在支护强度、初撑力、可缩量、安全保障及操作人员安全上，都优于其它单体支护材料。
Using individual hydraulic prop in thin coal seam face is better than the others in the aspect of support strength, premary supporting force, shrink amount and safety.
通过对ANSYS模型建立和网格划分模块的系统分析，结合巷道支护经验，找出了对U 29型钢可缩性支架进行模拟计算的方法。
Through systematic analysis of ANSYS modelling and meshing module, incorporation roadway design experience, a simulation calculation method on U29-type steel flexible support was found out.
本文给出了U型钢可缩性支架的缩动条件，讨论了卡缆预紧力对支架抗缩动能力的影响以及支架在缩动过程中抗缩动能力的变化等问题。
The paper gives yielding conditions and discusses the influence of pre-tension of clamps on yieldable capacity of the U-steel and change of yieldable capacity in the process of yielding.
他后来又解释道，这个空间的点睛处，在于它的灵活性：可回缩的墙体，可移动的舞台，还有可升降的观众席。
The beauty of the space, he explained, is its flexibility: the walls retract, the stage moves and the tiers of seats can be hoisted.
但每一次分娩和教科书差别相远，从发生规律宫缩的间隔到可预见的进程。
But far from every labor is true-to-textbook, with contractions regularly spaced and predictably progressive.
过渡或渐缩管道。可指定过渡类型。
Transitioning or reducing duct. Type of transition can be specified.
常设在建筑物垂直面的后缩处，但如果当作房地产名词，阁楼可指任何顶层而无关屋顶平台。
A penthouse is usually set back from the vertical face of a building, but as a real-estate term, penthouse may refer to any top floor, regardless of setbacks.
偏移过渡或渐缩管道。可指定过渡类型。
Offset transition ing or reducing duct. Type of transition can be specified.
平衡脸部油脂，缩细毛孔，可预防问题肌肤产生。
Balance our sebum system and contract skin pores, can prevent the formation of problem skin.
无明显禁忌症时，服用皮质类固醇及抗生素时也可给予宫缩抑制剂。
Tocolytics can be given to allow administration of antenatal corticosteroids and antibiotics.
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