它的头骨也是没有气孔的，这是鲸类动物为潜水而作出的另一适应。
The skull also lacks a blowhole, another cetacean adaptation for diving.
扫描电镜下地肤与其他药材的胞果、毛茸和气孔的形态特征有区别。
Kochia scoparia differed from the substitutes in utride, trichome and stoma under SEM.
气孔的大小与气孔密度呈负相关。
The correlation coefficient was negative between size and density of stoma.
同时分析了气孔的形成机理与分布原因。
The mechanism of formation and distribution of pores was discussed.
它们用快速开闭气孔的方式来发出这些声音。
They make these sounds by rapidly opening and closing their blowhole.
叙述灰铸铁件裂隙状氮气孔的主要特征、形成机理。
The main features of the fissure type nitrogen blow hole and its formation mechanism was described.
浮子室通气孔的效用是补偿空气滤清器阻塞的影响。
The purpose of the float-bowl vent is to equalize the effects of a clogged air cleaner.
研究六氯乙烷脱气剂对超声波处理铸锭内气孔的影响。
The effect of hexachloroethane degasser pretreatment on porosity formation in ultrasonic ingot is investigated.
用扫描电镜(SEM)表征了材料剖面气孔的形态结构。
The gas porosity of section plane was characterized with scanning electron microscopy (SEM).
带透气孔的门条，方便通风散热，提高设备运行可靠性。
Door bar with air holes, which is convenient for ventilation and heat dissipation, and for improving the working reliability of the equipment.
并应在海事报告书中，说明存油的数量及通气孔的位置。
The amount of the oil in stock and the positions of the air vents shall be clearly stated in the maritime reports.
我们提供了封闭的排气孔，所以没有人知道排气孔的出口。
We provide dummy vents, so no one knows what vents to go into.
对各种气孔的形成原因进行分析，并介绍相应的防止方法。
The formation reasons of every kind of blowhole was analyzed, and the appropriate preventing methods were intro-duced.
结果显示，合金层与基体成良好的无裂纹气孔的冶金结合。
The results show that the composite coatings have better metallurgical bond to the substrate, both crack and air hole are not found.
实验结果表明，厚度最高且带有一定透气孔的聚乙烯薄膜最好。
The experimental result that the best membrane is polyethylene which the thickness is better than another and has bleeder vent.
从原理上判断和估计了电熔板状刚玉结晶体和阔气孔的形成条件。
The forming condition of crystal and closed pore in tabular alundum produced with electric melting is estimated and determined theoretically.
解释了水蒸气保护焊焊缝的氢质量分数不高，不出现气孔的原因。
The reason for not high hydrogen content and free porosity in welds with this process is explained.
采用合理的焊前表面处理工艺、全熔透焊接可获得无气孔的焊缝。
The weld can performed free of porosity for full penetration weld when proper surface treatment processing prior to welding is employed.
显微相片阐明了第二相(玻璃相)、气孔的形成以及晶粒生长特性。
The characteristics of the second phases, pore formation and grain growth were illustrated.
阐述渣气孔的分布和形态、渣气孔的成因、 缺陷判断和防止措施。
The morphology and formation reason of the slag blowhole, judgement and prevention measures of the defect were described.
发动机缸盖进排气孔的导管和座圈装配质量直接影响整机动力性能。
The assemble process of Conduit and Seat Ring belong to cylinder header will do an important influence on the whole motor power performance.
鼻子就是有气孔的一块肉，它让你喘气和闻气味，还可以帮忙保护眼睛。
A nose is basically a lump of flesh with air holes in it. It enables you to breathe and smell; it also helps protect your eyes.
最大的优点仍是减少生产周期，并且能铸造出含有最少量气孔的铸件。
Important advantages are still achieved in cycle time reduction and the ability to cast near net shape castings with minimal porosity.
摇盘凸模接触到铝合金液时，控制加压速度平稳一些，可减少气孔的产生。
It can decrease the production of air hole by controlling the stableness of the velocity when female die contacted the liquid of aluminium.
所以常常容易因为溢流井与逃气道位置设计不当，使得铸件产生气孔的缺陷。
So often easily design overflow and air vent at inappropriate location, making casting generated gas hole.
运用QC（质量管理）方法，并结合统计分析，查找出了影响气孔的主要因素。
With the application of QC method, combined with the mathematical statistical analysis, The main factors that affect the gas hole are found.
我觉得在管口的几个通气孔的作用很大，半开型耳机表现要好于全封闭的耳机。
I assume the vents around the nozzle of the phones are partially responsible for that: semi-open phones always seem to perform better than fully closed ones.
负责维持食品操作区域地面，墙壁，天花板和排气孔的清洁，按照时间表严格执行。
Responsible for maintaining the cleanliness of floor, wall, ceiling and exhaust hood for all food preparation areas, with a proper schedule.
在餐厅区域，团队安置了一个无气孔的乙醇壁炉，看起来像明火在金属台面上跳舞。
In the dining area, the team inserted a vent-free ethanol fireplace, which appears as open flames dancing on the metal countertop.
在餐厅区域，团队安置了一个无气孔的乙醇壁炉，看起来像明火在金属台面上跳舞。
In the dining area, the team inserted a vent-free ethanol fireplace, which appears as open flames dancing on the metal countertop.
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