但后来，他把它们放在显微镜下观察，发现每个这些小小的，微不足道的贝壳唇部都有一个小孔。
But then he put them under a microscope and noticed that each of these small, insignificant shells had a tiny hole in its lip.
在其中一个小孔放入腹腔镜（带有光源的透镜）；腹腔镜将手术区域投射到电视屏幕上让外科医生可以观察到脊柱。
A special lighted telescope is inserted through one of these puncture holes projecting a picture on a television screen allowing your surgeon to see the spine.
腹腔镜检查方式——其中电极针通过一个小孔在很细的塑料管进入组织。
Laparoscopic, in which needle electrodes within a thin, plastic tube is threaded through a small hole in the skin in a procedure called a laparoscopy.
其实，挡光板及其上的开孔都是不必要的；单单反射镜本身就可以起小孔的作用。
Actually, the mask and openings are not really necessary; the mirror alone could serve as aperture.
应用压电陶瓷振动台振动钻削装置，采用变进给量振动钻削法加工微小孔，并用工具显微镜对入钻定位误差和出口毛刺进行测量。
By applying apparatus for piezoelectric ceramic vibration drilling, the method of varying feed rates in vibration drilling is used to drill the micro-hole.
这种显微镜利用局限在微小孔径上的隐失场提供物体表面形貌的细节，其分辨率可突破传统光学的衍射极限。
It utilizes the evanescent field confined at the tiny aperture for providing images of object surfaces with a resolution beyond the classical optical diffraction limit.
经计算机定位系统和内镜指导，外科医生在鼻子的后方的骨头上钻几个小孔并穿过硬脊膜。
Guided by a computerized mapping system and an endoscope, surgeons drill small holes in a bone at the back of the nose and through the dura.
这种技术，一般只需在手术部位做3个8毫米的小孔，放入比筷子头还要细的关节镜探头，所到之处都会在电视屏幕上显示。
This technique is generally done only in the surgical site 3 8 mm holes, into even smaller than the head of chopsticks arthroscopic probe, Everywhere will be displayed on the TV screen.
在上述球面反射镜上，在其和椭圆的长轴相交处开一小孔，即为灯口。
Small holes are arranged on the spherical reflecting mirror and the crossing portion of the spherical reflecting mirror and the long shaft of the ellipse, and the small holes are lamp holes.
在上述球面反射镜上，在其和椭圆的长轴相交处开一小孔，即为灯口。
Small holes are arranged on the spherical reflecting mirror and the crossing portion of the spherical reflecting mirror and the long shaft of the ellipse, and the small holes are lamp holes.
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