查询词典 sheath

The results show that the casing external collapse load could be lowered to some extent by increasing the cement sheath elastic modulus. But the effect of increasing elastic modulus is much less than that of decreasing the elastic modulus of cement sheath.

研究结果表明，增加水泥环弹性模量对套管外挤载荷有一定的减缓作用，但效果远没有降低水泥环弹性模量明显。

Culm sheath auricles absent or elliptic when present, oral setae present, sheath linear-lanceolate

当存在时的竿箨耳廓缺席的或椭圆形，存在的口头的刚毛，护套线状披针形 14

A large,padded,protective leather glove,usually with one sheath for the thumb and one undivided sheath for the remaining fingers,used by catcher s and first basemen.

棒球手套接球员和第一守垒员所戴的一种大的、塞絮的、保护性皮手套，通常有一个大拇指套和另一个用于其它手指的大套

Culms 2–3.5 m, 0.8–1.5 cm in diam.; internodes 20–28 cm, flattened, grooved, thickly white powdery below nodes, nearly solid; nodes with level or weakly prominent supra-nodal ridge; sheath scar prominent, with persistent remains of sheath base. Branches 5–15, deflexed. Culm sheaths gradually deciduous, ca.

秆2-3.5米，0.8-1.5厘米直径；节间的20-28厘米，使变平，在上开槽，在节点下面厚厚白色粉状，差不多固体；节具水平或身体虚弱的突出的超级节的脊；突出的鞘痕，具鞘基部的宿存的残余。

Furthermore there are more apoptosis cells in inner root sheath than in outer root sheath. Conclusion When we culture human hair follicle in vitro, Williams E serum-free medium is a suitable choice.This model is a fine model also, which is used for screening drug that may accelerate or inhibit the hair growth.Cryo-section can simplify procedure of paraffin section in histology detection of culture human hair follicle in vitro.We can observe the ultrastructural change of human hair follicle in vitro by transmission electron microscope,which can assist to observe apoptosis cells. The eyepiece micrometer is a simple tool for measuring length of hair follicle in vitro.

在离体培养人头皮毛囊时，Williams E无血清培养基是合适的选择，该模型也是筛选促进或抑制毛发生长药物的良好模型；离体培养毛囊组织学检测用冰冻切片可以简化步骤；透射电镜可以用来观察离体培养的毛囊的形态和超微结构的变化，也可以用来协助观察细胞凋亡的状况。

XD-2003 strap machine is changed from XD-2002 machine which has a cast aluminium on the bed,making the screw,screwtube and speed reducer keeping concentric.the V-model manger on the bed is lower than the flat on which the speed reducer is fixed,the components are finished machining by machine tool.guaranteeing perpendicularity, degree of balance.speed reducer,screw and screwtube is fixed on the base,and the screwtube is in the mini-manger,then ensuring axis keeping concentric with sheath,screwtube feed opening has a chromium hard-wearing sheath,which can improve the lifetime of the screw and screwtube to threefold or to fourfold.

XD-2003 型塑料打包带机组，是在XD-2002型机组的机座上安装了一个铸铁机座，使螺杆，螺筒和减速机保持同心，座上的V型槽比安装减速机的平面低，其部件都是经过机床精加工完成的，保证了垂直度和平衡度。减速机和螺杆、螺筒置于底座上，且螺筒卡在微型槽内。确保轴与套保持同心，螺筒下料口处设有高铬耐磨衬套，这样可使螺杆、螺筒的寿命提高3-4倍。

With conventional PCR primer pair XBFF/R,the same 352bp bands appeared by amplifying all the DNA samples from the eight races,and no bands appeared by amplifying all the DNA samples from the 9 plant pathogen species(Cucumber powdery mildew,wheat yellow rust,wheat leaf rust,wheat stem rust,wheat scab,wheat sheath blight,wheat loose smut,maize sheath blight and maize head smut)and control.

3用常规PCR和实时荧光PCR两种方法对温室接种的小麦白粉病进行了检测，并在时间上与自然显症的观察进行了比较，结果表明：在温室条件下，小麦白粉病菌在接种后第5d时开始出现小麦白粉病病斑，而利用常规PCR引物XBFF/R可在接种第3d检测到小麦白粉病菌，比自然显症观察能够提前了2d检测到白粉病菌；实时荧光PCR法可在接种后1d即能检测到小麦白粉病菌，比自然显症观察能够提前了4d检测到白粉病菌，这可为白粉菌的预测或预警检测提供依据，更可为白粉病在流行前制定防治决策赢得宝贵时间。4。

Culm internodes hollow; branches 5–9 per node; culm sheath margins glabrous, ligules 1–1.4 mm; leaf sheath margins glabrous, auricles ca.

Culm节间空；每节分枝5-9；竿箨边缘无毛，叶舌1-1.4毫米；叶鞘边缘无毛，叶耳约1毫米，叶片基部楔形。

The sheath-core ratio, compounding ingredient of the sheath ,chip drying process and drawing process were discussed for the composite spinning of low-melting point and normal polyester chips.

研究了低熔点聚酯切片的流变性能，以及低熔点聚酯与普通PET皮芯复合纺丝时的皮芯层复合比、皮层组分配比、切片干燥工艺和纤维拉伸工艺。

Germany under the palm, a green sheath, I meet up with the green sheath, and then threw herself into my arms:"The small strong, how do you come back now, I miss you ah!"

德掌下，一绿色刀鞘，绿色刀鞘我迎了上来，然后扑到我怀中道：&小强，你怎么现在才回来，我好想你啊！&

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。