underbody

1. Note the sucked-in contour at the lower door ahead of the rear wheel arch; note also the eye-fooling black rocker panels ( the panels under the doors) that helps control spray and manage underbody aero without compromising that athletic waist.
   请注意后轮拱罩前面车门下部的吸入式轮廓，也请注意给人错觉的黑色踏脚板（门下的踏板）。踏脚板控制溅水，控制车底气流，同时又不牺牲腰部的美感。
2. Remove underbody panel from transmission.
   拆卸变速器的底部面板。
3. On a typical day at the plant, BSP workers in dark uniforms are hunched over assembling wiring and parts to the underbody of a new electrical railcar, surrounded by several huge steel frames.
   这是该厂典型的一天：身穿黑色制服的bsp工人弯着腰，忙着组装新电气列车车厢底部的线路和零部件，周围是几座巨大的钢架。
4. Remove underbody panelling on the engine.
   拆下发动机上的车底饰板。
5. Remove complete centre underbody panel.
   拆下整个中央车底护板。
6. Install centre underbody cover according to removing and installing centre cover-section on "installing".
   根据拆卸和安装中央盖-“安装”章节安装车底中央盖。
7. Lastly, a research for springback reason and a compensation for tool surface of underbody cross member panel were performed using JSTAMP.
   最后，研究了回弹的原因和介绍了使用JSTAMP对车身底座横梁板执行回弹补偿的过程。
8. Fit rear and centre underbody panelling.
   安装后部和中央车底护板。
9. Check clamps on the vehicle underbody, and replace if necessary.
   检查车底的卡箍，如有必要，予以更换。
10. Fit underbody panelling under the engine.
    安装发动机下的车底饰板。
11. The influence rules of underbody diffuser on light-bus aerodynamic characteristics are studied with the method of numerical simulation.
    用数值模拟的方法，研究轻型客车底部上翘角对其气动特性的影响规律。
12. Unscrew fastening screws securing wheel housing liner to front underbody panelling.
    拧下用于将轮罩内衬固定至前车底护板的紧固螺钉。
13. If virtual punch velocity goes beyond the limit while simulating the process of truck underbody cross member deep drawing, the result of simulation will be fuzzy badly, therefore the maximal virtual punch velocity should be controlled within 2 000 mm/ s.
    在模拟拉深成形时，当虚拟冲压速度大于一定值时，会使模拟结果严重失真，因此，汽车横梁拉深数值模拟时最大虚拟冲压速度不要大于2000mm/s。
14. With this simulation, the influence of fixed wall boundary layer on underbody was eliminated by and large.
    该模拟方法基本消除了固定边界层对车身底部的影响，从而提高了地面效应数值模拟精度。
15. A series of novel acrylic polymers were synthesized by emulsion polymerization for car underbody coatings, which have no environmental pollution.
    为了开发对环境无污染的环保型汽车底盘用涂料，本文通过乳液聚合研制了一系列丙烯酸类聚合物。
16. By analyzing flow field characteristics in wheel cavities and underbody, results demonstrated that aerodynamic drag coefficients of the wheel and the whole car change as the number and area of holes increases.
    通过对轮腔内以及车身底部的压力等值线和涡量等流场特性的分析，得出随着辐板上开孔个数和面积的增加车轮的气动阻力和汽车总气动阻力系数的变化规律。
17. With its excellent dimensional stability and elastic properties, thermo-expandable microspheres are used as a foaming agent in many different fields, such as thermoplastic resin, thermosetting resin, underbody coating, printing ink, adhesive, paper and explosives.
    作为发泡剂，其稳定的膨胀性能和高回弹性，被广泛应用于国防和商业的各个领域，如热塑性树脂、热固性树脂、汽车底部涂层、印刷油墨、粘合剂、纸张、爆炸物等。
18. However, we have very little reference book to talk about the minivan underbody, most of experience from the plant practice.
    然而，书籍上关于微车底板的论述较少，多半是企业在实践中进行摸索。
19. So the underbody must have integrated structure, especially for rear underbody to meet the low cost and strong body requirement.
    因此在设计底板尤其是后底板时多半采用一体式平整而宽大长的板料，这样较能满足低成本及客户的需求。

noun

1. the soft belly or underside of an animal's body

   Synonym:    underbelly