凹槽

Fracture is caused by sheet's tensile instability, Hill's totalized instability theories and Swift's diffuse instability theories which based on continuous mechanics are applied to isotropic blank; Marciniak and Kuczynski's theories are applied to orthotropic blank, which introduced thickness imperfections normal to the principal stress and strain direction as a groove pre-existing defects in the material. The stability of each part of blank at each moment is described by numerical method, and the results are shown by computer simulation, thus the fracture in sheet forming can be predicted preciously.

拉裂是由于拉伸失稳引起的，以连续体力学为基础的Hill集中性失稳理论和Swift分散性失稳理论应用到各向同性板料进行失稳判定；将Marciniak和Kuczynski的凹槽损伤失稳理论应用到正交各向异性板料拉伸失稳判定，对板料各处在成型过程中不同时刻的稳定性进行数值化描述，并运用计算机仿真技术进行直观的表现，可以准确地预测板料成型中可能出现的拉裂现象。

If a ball comes to rest on such a groove, it is impossible to putt the ball with any degree of accuracy.

如果球停在了这样一个凹槽里，想精确的推杆是不可能的。

All SVG cylinder pockets must have sufficient drainage to allow oil to flow out the bottom of the tool in the event of a hydraulic line leak.

为油缸设置的凹槽必须有排泄功能，以确保一旦出现油缸泄漏，它能将油放到模具外面。

Sedimentary basins vary from bowl-shaped to elongated troughs. Basins can be bounded by faults.

沉积盆地的形态可为盘状至纵长形凹槽；可以断层为界。

Culm sheaths brown-red when fresh, with sparse or rather dense small spots, distal margins dark purple

没有腺毛的花梗和萼片；种子肾形三角形，具凹槽 56

An MRI revealed a highly vascularized supra- and infratentorial mass involving the right Meckel cave.

核磁共振成像显示一个高度血管化的幕上、幕下肿块，累及右侧的Meckel凹槽。

In addition, the repair method can also be filled tree holes, stuffing is best to use small gravel and cement mixture to be compacted filler, filler to strengthen the connection with the xylem, inside the cave can be a number of electroplating nails nails, holes dug in on both sides 4 centimeters deep groove at the bottom of filler from the start, each 20-25 cm for the layer, using linoleum separated from each floor should be inclined slightly outward to facilitate drainage, the edge should not exceed xylem, so that cambium in the formation of callus on it.

另外，也可用填充法修补树洞，填充物最好用小石砾和水泥的混合物，填充物必须压实，为加强填料与木质部的连接，洞内可钉若干电镀铁钉，洞口内两侧挖4厘米深的凹槽，填充物从底部开始，每20厘米至25厘米为一层，用油毡隔开，每层都要向外略斜，以利排水，边缘应不超过木质部，使形成层能在它上面形成愈伤组织。

Cement walls painted in a layer of paint will add warm bath degrees, and the mosaic glass tiles, tile patterns, and even the tongue and groove boards to deal with the design can make the walls more interesting.

在水泥墙上涂上一层油漆会使浴室增添暖度，而马赛克玻璃砖，刻花磁砖，甚至板舌以及凹槽处理都能使墙壁的设计更为有趣。

Get back to the study, move the wooden ladder by the floor clock, investigate the clock, inlays the gem in two grooves, stir the indicator of the clock to 4 o'clock, 8 o'clock, 12 o'clock and rotate the clockwork spring separately, the floor clock removes, dimple a passway leading to basement.

回到书房，将木梯移动到落地钟旁边，调查钟，在两个凹槽处嵌上宝石，分别拨动钟的指针至4点、8点、12点且转动发条，落地钟移开，现出一条通往地下室的通道。

The plasma igniter with pilot-hydrogen and high-power plasma igniter are adopted in the direct-connected experiment of supersonic combustor.

采用等离子体点火、凹槽火焰稳定器和从壁面喷射燃料方式，实现了煤油的可靠点火和稳定燃烧。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失