那片真空，由于没有光可以穿透它，便呈现出完全的黑色——并不是比黑色深或比黑色浅，不是那种我们宽泛地将之归类于这个词的东西，而是完全的、彻底的无限黑暗。
The empty region, since no light ever penetrates it, is absolutely black-not more or less black, like the things to which we loosely ascribe this word, but utterly, completely and infinitely black.
无尽的黑暗则是妨碍深海探索的另一大障碍，因为阳光只能穿透几百米深的海水。
Unrelenting darkness is another barrier to exploring the deep. Sunlight penetrates seawater to a depth of only a few hundred feet.
这种光波可以穿透皮肤几厘米深。
This wavelength of light can penetrate several centimetres into the skin.
将深穿透勘查地球化学定义为研究能探测深部隐伏矿体发出的直接信息的勘查地球化学理论与方法技术。
Deep penetration exploration geochemistry, a new branch of exploration geochemistry, involves the measurement of any direct geochemical information emanating from the deeply concealed deposits.
它采用高孔密大孔径深穿透射孔弹和大压差抽吸炮眼清洗技术，不仅能提高油井产能，解除近井带污染，还可以改善防砂完井效果。
The technology uses deep penetration perforation charge with high perforation density and large perforation diameter and surging perforation with greater pressure differential.
研究出的低聚合物加量胶凝酸体系，降低酸液滤失，实现酸液缓速和深穿透的目的。
The acid gelling of less additive can reduce leak in crack or hole and delay acid reaction to penetrating through farther.
本文介绍了采用大功率深穿透激光焊接不锈钢制压力容器管子—管板环缝的试验结果。
This paper introduced the experiment of applying high power, deep penetration laser welding stainless steel tubes-tube plates.
酸滤失是制约酸蚀缝长延伸的重要因素之一，滤失控制是深穿透酸压工艺成功与否的关键所在。
Acid filtration is one of the major factors that restrict the growth of acid etched fractures and filtration control is the key to deep penetrating acid fracturing technology.
目的：比较穿透性角膜移植术与深板层角膜内皮移植术在术后免疫排斥反应、内皮细胞及散光度数的差异。
PURPOSE: To compare the postoperative graft rejection, endothelial cell density and astigmatism of deep lamellar keratoplasty (DLK) with penetrating keratoplasty (PK) on rabbits.
为此，研究了一种新的低伤害大型压裂技术，力求实现低伤害、深穿透、高导流的目标。
So a low damage & massive hydraulic fracturing technique is put forward in this paper with the key object being low damage, longer penetration, and high fracture conductivity.
回顾了前人利用电子束焊接过程产生的特有现象作为研究瞬态过程的依据，揭示了一些焊接瞬态特征以及提出的各种有关电子束深穿透焊接的物理模型。
Some special dynamic characteristics were disclosed using some special phenomena in the EBW processing, and at the same time, the physical models of the EB deep penetration were put forward.
方法：应用深低温保存1～60月的健康人尸角膜为真菌性角膜炎10例、10眼和病毒性角膜炎4例、4眼行穿透性角膜移植术。
Method:10 cases(10 eyes)of fungal keratitis and 4 cases(4 eyes) of viral keratitis were performed penetrating keratoplasty with health human cadaver corneas cryopreserved 1 to 60 months.
国内外油气田开发的实践表明：对于低渗油田，水力深穿透水平钻孔是最佳的开发方式。
Practice for the development of oilfield exploitation of the world indicates that the water jet perforation is the optimal method for low permeability reservoir.
单岩心驱替实验表明：基质渗透率很低的碳酸岩岩心，很难形成深穿透酸蚀蚓孔。
Through single rock test shows that: for carbonate rock with very low permeability, it is hardly can form deep penetrated wormhole.
该系统包括“三大”成矿体系，即：幔源岩浆体系、深穿透断裂构造体系、含矿气液流体体系。
The mineralization system has three giant system, namely mantle magmatic system, penetrability deep-fault and ore- bearing pneumato-hydrothermal system.
对于非穿透激光深熔焊而言，焊接熔深是最重要的质量参数之一，对其进行实时监测具有重要意义。
The penetration depth is one of the most important quality parameters in partial penetration laser welding, and therefore real time monitoring for penetration depth becomes extremely significants.
探讨了激光焊接工艺参数对激光深穿透焊接中的深宽比的影响，找出了其影响规律。
In this paper the effect of adopted technological parameters upon the depth-width ratio in laser deep penetrating welding is discussed, and the rule of the effect are found.
深窗孔从这种表皮中穿透，并由深黑色金属面板抵消的浅钢箱连接。
Deep window apertures are punctured through this skin and articulated by steel shadow boxes offset by dark black metal panels.
深窗孔从这种表皮中穿透，并由深黑色金属面板抵消的浅钢箱连接。
Deep window apertures are punctured through this skin and articulated by steel shadow boxes offset by dark black metal panels.
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