内腔

We have extracted DNA from the inclusion of a dinosaur egg fossil from the Late Cretaceous in Xixia Henan,China, DNA fragments are isolated from the floccus in the cavity of the egg fossil,and confirmed by the method of random primer isotope labelling.

本文从河南省西峡晚白垩世的一枚保存方式特殊的恐龙蛋化石中提取DNA，经过￣32P同位素标记和电泳分析，发现在蛋内腔的絮状物样品中确有DNA片段存在。

In 1868 Dr. Adolph Kussmaul at the University of Freiberg, Germany, developed the rigid endoscope, by using a sword swallower as his guinea pig.

1868年，来自德国弗莱堡大学的Adolph Kussmaul医生利用一名吞剑者做为他的实验对象，开发出了刚性内腔镜。

M ethods 96 used gastro scope were average to 2 group s and were sterilized by be marinated in 2%glutaradehyde fo r 20 m inutesand acidic oxidized electro lyzed water fo r 5 m inutes,respectively.Compare the sterilizing effect of the 2 group s.

临床污染的96条胃镜分为两组，分别采用2%戊二醛浸泡20 min、酸性氧化电位水浸泡5 min的方法消毒，比较2种消毒液对胃镜表面和内腔的消毒效果。

An instrumentwas designed and realized to measure the stator interior, based on the electri2cal vortex sensor. Itwas designed with maintainability and reliability, so that it could be maintained in a short time without a p res2ent p rofessionalmaintain man.

文中设计并实现了一套基于电涡流传感器的定子内腔测量装置，该装置进行了可维修性的可靠性设计，不需专业维修人员到场就可迅速排除故障。

Through valve: A valve with a linear movement of the closure components, there is a single seat or multi-seat, and its valve seat area because there is a spherical cavity and different.

直通阀：一种阀门，带线性运动的截流元件，有单阀座或多阀座，它的阀体因为阀座区域有一个球形的内腔而与众不同。

1The shape of seed curved face and the parametric equation of the peak pointangle of the seed surface are put forward.

对内侧充种垂直圆盘排种器工作时，排种器内腔中种子面的形状进行了分析，提出种子面最高点位置角的参数方程。

The new mold adopts the plane section instead of the funnel section of H^2 mold bottom, and shorten the length from 2100 mm to 900 mm. By simulating and optimizing the slab stress in molds, a new shape-funnel mold is designed, which have merits of lower slab stress and strain and smooth-transition of curve surfaces.

这种漏斗型结晶器将H^2，结晶器下部的漏斗区改为平面区，结晶器漏斗区高度由2100mm缩短为900mm，并通过模拟计算和优化设计，使结晶器内腔曲面形状各部分平滑过渡，使其具有生产铸坯承受变形应力小的优点。

A detachable plate that covers the closed end of a cylinder chamber in a reciprocating engine or pump .

覆盖在往复式发电机引擎的汽缸内腔的封闭一端的可分离的盘状物体。

Dedicated control valve with rubber lining Check Valves corrosive or strong corrosive medium, body cavity surface was covered with a variety of options fluorine plastic, for different temperature and fluid piping, high strength, corrosion resistance and good .

衬胶衬里阀专用于控制腐蚀性或强腐蚀性介质，电站阀门阀体内腔表面覆有可供选择的各种氟塑料，适用于不同工作温度和流体管路，具有强度高、耐腐蚀性能好的特点。

Special silex nozzle, smooth inside, angle precise, long-term spray, without crystal.

采用独特的石英玻璃烧制成的喷嘴，内腔圆滑，角度精确，长期喷雾，无结晶。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。