The basic operation principle of PIN diode, the main parameter of the tube, microwave characteristic and PIN diode main application are discussed.
本文综述了PIN二极管的基本工作原理，管子的主要参数和微波特性，以及PIN二极管的主要应用。
According to automatic machining procedure and needs of pin tube, and with the consideration of realistic manufacturing technology of factory, an automatic welding machine for pin tube is designed.
在深入分析钉头管自动加工所需的加工工序，并实际考察工厂的实际制造技术之后，研究与设计了钉头管自动焊接机床。
Complications included pin track infection at 5 sides, metaphyseal non union at 1 side, wrist tube syndrome at 1 side and traumatic arthritis at 2 sides.
并发症包括钉道感染5侧，骨干部骨不连1侧，腕管综合征1侧，创伤性骨关节炎2侧。
This paper studies the pin-fin tube, smooth tube and finned tube on the same wind channel test apparatus through experimental method.
采用实验研究的方法，分别对针翅管，平直翅片管和光管在同一风洞实验台上进行了实验。
The heat exchangers with pin finned tube have been simulated by means of FLUENT.
本文采用Fluent对针翅管换热器进行了数值模拟研究。
Because of the complicated configuration of the heat exchangers with pin finned tube, previous studies focused on their experiments and there are no many researches on their numerical simulations.
由于针翅管换热器内部结构的复杂性，以往的研究大都集中在实验研究上，在数值模拟方面的研究较匮乏。
In order to improve the lifespan of punch pin for al tube, the failure reason was carefully analyzed by SEM.
为了提高铝管冲头的使用寿命，用扫描电镜等手段对其失效原因进行深入分析。
This paper introduces the structure and the intensified heat-transfer mechanism of pin-finned tube, a recently developed new type heat-exchanging element.
介绍了新研制的一种新型换热元件—针翅管的结构及其强化传热原理。
Objective: to introduce a new pin and tube removable lingual arch system into the orthodontic treatment, as well its fabrication method, implication and treatment design.
目的：介绍一种新型的锁道式可摘式腭弓的适应证、制作方法、临床设计以及在临床的应用。
Chapter 4 mainly illuminates safety sampling technique, including theory of corer tube stability, qualitative analysis of parameters of corer releasing and a new type connection of plug pin.
第四章介绍了取样器安全性准则，主要包括保真取样器稳定性理论及取样器释放参数的定性分析及新型销轴式连接方式。
The utility model comprises a nut cutting sleeve (1), a hollow guide tube (2), a metal ferrule (3), a pin (4) and a handgrip (5).
本实用新型由螺母卡套(1)，空心导管(2)，金属箍(3)，销钉(4)，手柄(5)组成。
The first tube was winded pin-fin tube which was improved and self-designed.
第一种是自行改进设计的绕丝针翅管。
The first tube was winded pin-fin tube which was improved and self-designed.
第一种是自行改进设计的绕丝针翅管。
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