Formulation of arizona test dust by collecting wind blown topsoil , which required screening and blending , became impractical as larger quantities of test dust were needed 由于试验粉尘的需求量很大，使通过收集由风吹起的表层土来获得亚利桑那试验粉尘的公式变得不切实际。
This revision improves the alignment of the endplate with the inner profile of the front wheels , lessening the turbulence when air passing over and underneath the wing impacts the wheels 这个修正加强了终板和前轮内侧的校直，使通过翼面上下的气流在冲击轮胎后产生的乱流减小。
Suspension fluid - - used inside a shock absorber to create damping when forced through orifices or valving . the fluid is also used for lubrication and should be incompressible 悬挂用液体用于减震内，当油被迫使通过小孔或阀门时吸收或产生阻尼的。也起润滑作用，它应该是不可压缩的。
According to the usb specification rev . 2 . 0 protocol , the rate of data transmission is up to 480mbps , thus it becomes realizable for a peripheral equipment to transmit great - capacity data at high speed by using usb Usb2 . 0协议中,数据的最高传输速率提高到480mbps ,这就使通过usb实现快速传递大容量数据的外设成为现实。
Regular expressions extend this basic idea many times over , providing a large set of metacharacters that make it possible to describe very complex text - matching expressions with relatively few characters 正则表达式极大地拓展了此基本思路，提供大量的元字符组，使通过相对少的字符描述非常复杂的文本匹配表达式成为可能。
Although some are used during heart bypa surgery , most coronary stents are i erted as a follow - up to angioplasty , a le invasive procedure in which the blockage is cleared from i ide the artery by inflating a balloon 虽然也有一些被用于心脏搭桥手术，但大多数心血管支架用于血管成形术的后续治疗器械，这样可以使通过给气球充气从动脉内部清除动脉阻塞的过程更不易扩散。
Although some are used during heart bypass surgery , most coronary stents are inserted as a follow - up to angioplasty , a less invasive procedure in which the blockage is cleared from inside the artery by inflating a balloon 虽然也有一些被用于心脏搭桥手术，但大多数心血管支架用于血管成形术的后续治疗器械，这样可以使通过给气球充气从动脉内部清除动脉阻塞的过程更不易扩散。
This chapter argues that chinese securities laws shall adopt an integrated civil liability for misrepresentation based on tort law principles , so that investors who acquire securities from different markets can resort to the same remedies 本章认为，我国证券法上关于虚假陈述的民事责任应当统一以侵权责任作为立法基点，从而使通过不同渠道获得证券的投资者获得同等的救济。
With the rapid development of molecular biology , the researchers of different scientific background are provided with a good opportunity to enter the field . people can resolve some important difficult problems with all kinds of research methods and knowledge in their fields . it is chemists " tribute that they design and synthesize effective nucleic acid cleavage reagents and clarify the reaction mechanism of complexes and dna , which makes it possible to search effective remedial reagents and structural probes by molecular design 分子生物学的迅猛发展为不同科学背景的研究者涉足该领域提供了良好的机遇，人们可以利用各自领域的研究方法和知识来攻克生物学中的一些重要难题，化学家所能做的贡献就是设计和合成一些特异识别和高效切割的核酸断裂试剂，并阐明其作用机理，从而使通过分子设计寻找有效的治疗试剂和结构探针成为可能。
The lining of a tunnel in the area with high groundwater table does not bear high external water pressure in - normal , the surrounding rock reinforced by intrusion concrete does it . in the case , the groundwater through reinforced rock accumulated in the space between lining and rock must be drained in time 一般铁路隧道通过高水位富水区时，不用衬砌直接承受较高的外水压力，要实现这个设计目标必须做好衬背的排水工作，使通过加固圈渗透过来的水量及时排走，及时削减累积的水量。
