在二冲程发动机中你必须混和燃料和气体，因为气缸壁上的孔阻止使用活塞环密封燃烧室。
You have to mix oil into the gas in a two-stroke engine because the holes in the cylinder wall prevent the use of rings to seal the combustion chamber.
这是因为通过练习，你的嘴唇会紧紧地密封住吹孔，这样气流就不会在嘴唇边漏掉了。
This is because, with practice, your lips form a better seal around the holes, so that air does not escape.
从箱体阻尼损失来看，导向孔和双反射带通箱设计在极低频下比密封箱和单反射式带通箱设计有着更大的失真。
Related to the loss of enclosure damping, ported and dual-reflex bandpass designs also exhibit higher distortion levels at very low frequencies than sealed or single-reflex bandpass designs.
打开密封的地下水疏水管道人孔以试图定位进入系统的氚源。
Opening sealed subsurface drain line manways to attempt to localize the source of tritium into the system.
将侧窗密封件放在定心孔上，然后用抽芯铆钉铆接侧窗密封件。
Position the side wind ow seal on the centering hole and rivet it down using the pop rivet.
没有橡胶密封垫圈的孔堵塞，一旦你敲出来的，所以它不是气象证明。
There is no rubber grommet to seal the hole once you knock the plug out, so it is not weather proof.
根据介质性能及使用期，应经常检查阀体顶部四氟密封圈和孔板部的四氟薄片。
According to media performance and the use of period and should always check the valve orifice at the top of the Ministry of PTFE seals and PTFE sheet.
文章主要对密封机箱的几种不同结构形式进行仿真计算，并选取一种孔缝泄漏量少的结构形式作为军用舰载雷达的机箱形式。
In this paper, several structures of sealed case are introduced and calculated. By the data of calculator, the least leakiness of military case structure is selected.
最新的扩展，密封球面滚子轴承范围包括11个新变种，与圆柱和圆锥孔版本，这取决于特定的应用需求。
The latest extension to the sealed spherical roller bearing range includes 11 new variants, with both cylindrical and tapered bore versions available, depending on specific application requirements.
结论短期内冠根向预备技术比逐步后退技术成形的根管更有利于根管充填后根尖孔的密封。
Conclusion it is better apical sealing ability in root canals prepared by crown-down technique than step-back technique.
气缸盖用的密封垫是用软金属薄片或金属和石棉组成的薄片制成，留出所有的气缸孔、水道孔、气门孔和气缸盖螺栓孔。
Head gaskets are made of thin sheets of soft metal or of asbestos and metal. All cylinder, water, valve, and head-Bolt openings are cut out.
主要研究内容和结论如下：1。建立了激光加工多孔端面机械密封的流体动力学分析模型，根据假设，一个孔栏上的液膜压力分布可表征整个密封面上的液膜压力。
The main contents and achievements are summarized as follow:1. A theoretical model has been developed to investigate hydrodynamic effect of mechanical seals with a laser-textured pores seal face.
密封板分别结合于压辊箱体的孔的内外表面上。
Sealing plates are attached to an inner surface and an outer surface at the opening of the roll casing, respectively.
撬块包里所有没有使用的孔都密封，撬块要焊在其地基上。
All unused openings on the package skid are sealed, and the skid requires sealing to its foundation upon installation.
实践证明，采用乐泰密封技术，工艺孔的密封性能可以大大提高，并可降低加工成本等。
It is proved that sealing performance of processing holes can be greatly improved and production cost be reduced by using Loctite sealing technology.
专用密封闭孔弹性氯丁橡胶。
锅构成双重防漏密封圈高压锅其特 征在于胶圈（4）中心安装了有孔金属圈（5）。
The pressure cooker with the double leak-prevention seal ring is characterized in that the metal rim (5) is mounted in the center of the rubber gasket(4).
该装置包括待镀工件、工件装夹密封装置、内孔刷镀专用镀笔、镀笔转动装置。
The device comprises a workpiece to be plated, a workpiece clamping sealing device, a plating pen special for inner bore brush plating, and a plating pen rotary actuator.
三个出奶孔(3)一个开通，另外两个密封。
One of the three milk discharging holes (3) is opened and the other two are sealed.
JWT型焊接式液压阀门测试台，以两边主机架上的密封盘和焊接阀门内孔为定位，焊接阀门坡口为密封。
JWT type welding type hydraulic valve testing bench, to both sides of the host frame seal disc and welding the inner hole of the valve for positioning and welding groove of the valve is sealed.
将吹灰器平置，密封支座中心对准炉墙开孔，根据图三的吊装示意图，选择方法a或方法b支承吹灰器尾部。
Put the center of the sealing seat and the hole in the wall in a line and according to Figure 3 select method a orb to support the rear of soot-blower.
底部凸台盖板进线，盖板可预先拆下开孔，并配有密封圈。
Cable inlet for bottom elevated cover plate: the cover plate can be dismounted to drill holes and the seal rings are provided.
一个孔板(支撑骨架)被置于上下密封环的中间来加固折叠材料以防变形(密封力)。
A perforated plate (supporting shell) is placed between upper and lower sealing rim to reinforce the pleated material against deformations (sealing force).
注意：对于机械密封，在大多数情况下，由于汽化导致从密封泄液孔处观察不到泄漏，但有时少量而又稳定的泄漏是允许的。
Note: for mechanical seal, in most cases, due to evaporation from seal leakage of fluid leaking hole in observation, but sometimes a small amount and stable leakage is allowed.
该组合式机械三通密封的特殊设计使之能配合开孔机开出与管道内径相等的孔；
The special design of the tee branch is appropriate for drilling holes equal to the inner pipeline . diameters.
计量孔板由铸铁法兰，密封垫，孔板（铸铁或不锈钢）组成。
They are built with cast iron flanges, gaskets and orifice plates (either mild steel or stainless).
其构成是塑料空心砖的平面、侧面设有密封槽、密封条、通孔，一次压制成型。
The flat face and the side face of the plastic hollow brick are provided with a sealing groove, a sealing strip and through holes; the plastic hollow brick can be formed once by pressing.
利用磷化锌毒签防治幼虫时要在蛀道低端几个新鲜都插毒签，并用泥土密封所有排粪孔。
The Zinc phosphide sticks were inserted into new hole of the gallery from bottom to top, and then the holes had to be blocked with mud.
利用磷化锌毒签防治幼虫时要在蛀道低端几个新鲜都插毒签，并用泥土密封所有排粪孔。
The Zinc phosphide sticks were inserted into new hole of the gallery from bottom to top, and then the holes had to be blocked with mud.
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