They have tiger stripes or leopard spots, or holes through them.
它们有着老虎皮般的条纹或豹子般的斑点，或是中间穿孔的。
The motion of electrons or holes in semiconductor in electric field.
半导体中电子或空穴在电场中的运动。
Oil ring slots, or holes, must be clean; a drill of the proper size is handy for this job.
油环开缝或孔隙必须清理干净，用适当尺寸的钻机进行这项工作较为便利。
Some live in large groups like the honey-bee, and make their nests in trees or holes in the rocks.
有些蜂种是群居生活比如蜜蜂，它们将巢筑在树上或者岩洞中。
These are devices of different shapes you can stick in cracks or holes for protection without damaging the rock.
用这些不同形状的器械塞入裂缝和洞中以保护自己而不会破坏到岩壁。
A wellbore tubular in which slots or holes have been made before the string is assembled and run into the wellbore.
在管柱被安装和下入井筒以前已经带缝或孔的井筒管子。
Our structure is porous or open with gaps or holes that are a reflection of a large amount of air element that we hold.
我们的结构是多孔渗水的，或是拥有间隙或洞的开放式的，这是我们持有大量的气元素的反映。
If there are lacunas or holes in concrete structure, it will affect the supportability and endurance of concrete structure seriously.
混凝土结构内部若存在不密实区或空洞等缺陷，必然会严重影响结构的承载能力和耐久性。
These magnetic sensors offer reliable piston magnet detection and are easily mounted, without the need for mounting slots or holes in the cylinder.
这些磁性传感器提供可靠的活塞式磁检测，并方便地安装汽缸，而不需要或孔用于安装槽。
Researchers developed sophisticated methods to grow high-quality semiconductor crystals, reducing the likelihood that electrons or holes will become trapped by defects.
研究者发掘出生成更高质量的晶状半导体精密方法，以减少电子或者正电穴由于杂质而受阻的可能性。
But in the same time, in order to decrease even refrain the pressure impact and gas eroding during the process of matching flow, there are groves or holes in the valve plate.
而同时为了抑制乃至消除在配流过程中出现的压力冲击、气蚀，配流盘上往往设有减振槽或减振孔。
The mist reservoir may define a plurality of apertures (or holes) orientated substantially perpendicular, and the opening of the piezo component may be located above the mist reservoir.
储雾器限定基本垂直定向的多个小孔(或洞)，所述压电部件的开口置于储雾器的上方。
AIM: to investigate the therapeutic effects of preventive laser photocoagulation for moderate and high myopia patients with peripheral retinal degeneration or holes before LASIK operation.
目的：观察中高度近视患者LASIK术前对周边视网膜变性和裂孔进行预防性激光光凝的疗效。
The design incorporates a channel thin enough to become entirely devoid of carriers (ie, free electrons or holes) when switched off, thus acting as a valve, yet full of them when switched on.
这一设计包含了一条足够细的隧道，当它关闭时，里面完全没有载流子(电子或空穴)，当它打开时，里面便充满了载流子，起到了阀门的作用。
Some animals grow thicker fur, or live in tree holes or underground to stay warm.
有些动物会长出浓密的毛发，或者居住在树洞或地下来保暖。
The water is brought to the surface, as a liquid or steam, through holes drilled for the purpose.
水通过特意钻的孔，以液体或蒸汽形态被带到地表。
First, squirt some lemon juice on door thresholds and windowsills, then squeeze lemon juice into any holes or cracks where the ants are getting in.
首先挤一些柠檬汁在门槛和窗台上，然后将柠檬汁挤进各种蚂蚁可能爬进来的小洞或者裂缝。
Made of wood or polystyrene, nesting boards have holes drilled in them for bees to use to build their leafy nests.
巢套板由木头或聚苯乙烯制成，中间钻有小孔，以便蜜蜂用来筑造用树叶做成的巢穴。
There are scores of books recommending places to see, books to read, music to hear, golf holes to play or watercourses to fly-fish before we die.
有许许多多的书，推荐一生必游的地方、必看的书、必听的音乐、必打的高尔夫球场球洞和飞钓必去的水域。
The result is holes, or “vacancies”, and “interstitials”, where additional atoms have squeezed into the structure.
其结果就是空洞或“空缺”以及“填位”（即多余的原子被挤压进这一结构）。
Lesions develop that eat bone, cartilage, skin and soft tissue, leaving victims with gaping holes where their lips or noses should be.
疾病引发的损害侵蚀骨骼、软骨、皮肤和软组织，造成患者的嘴唇或鼻子部位溃烂为空洞。
To plug holes in its product portfolio or react to market demand, it bought dozens of other networking firms and perfected the difficult process of integrating them.
为了堵住其组合产品的漏洞，亦或应对市场需求，思科购买了几十家网络公司，并完美地攻克了整合这些公司的难题。
They stacked rocks with center holes (tube or doughnut shaped) from the surface to the deep stone layer as a guide for their drills (similar to today's guide tubes).
管状或中空管状的中心孔从地表到深石岩石层放满石头，以作为铁转的探头，作用类似今天的导管。
Early evidence has shown that even in prehistoric times, surgery to relieve pressure on the brain were performed, with skulls bearing carefully drilled or cut holes providing testimony to the fact.
之前的证据表明，早在史前时代，外科治疗能够缓解大脑压力的观念就已经形成了。他们把头盖骨钻开、或者切开一个小洞就是很好的证明。
We also need such a theory to understand what happened immediately after the big bang or what's going on near black holes, where the gravitational fields are immense.
我们需要一个能够帮助我们理解宇宙大爆炸之后瞬间或者是黑洞附近发生的事情的理论，那些地方都具有很强的引力场。
Moth larvae, carpet beetles, and silverfish feed on the natural fabrics in your clothes, causing small holes or shreds.
蛾子的幼虫、地毯圆皮囊还有蠹虫是以衣服上的天然纤维为食的，造成衣服上的小洞或是部分衣服碎片。
Researchers say the objects are either stars, hundreds of times more massive than our own sun, or enormous black holes.
研究人员声称，这些物体也是恒星，但是可比我们的太阳或者巨大的黑洞还要庞大上百倍。
Which came first, black holes or galaxies?
是先有黑洞呢？还是先有星系？
Which came first, black holes or galaxies?
是先有黑洞呢？还是先有星系？
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