双射

Applicable to small and medium-sized resin sand core of the automated production.

工作形式；垂直分型和水平双头射砂垂直自动加砂。

An optical microscope, atomic force microscope, scanning electron microscope, high resolution double crystal X-ray diffraction, and Raman shift spectrum are used to analyze the sample.

采用光学显微镜、原子力显微镜、扫描电子显微镜、高分辨率双晶X射线衍射和喇曼谱测试对薄膜进行分析。

A new method based on E-shaped antenna and inverted F antenna is developed in order to meet requirement of 840~845 MHz and 920~925 MHz in China.The novel antenna is designed in this paper.

针对射频识别系统UHF频段的中国标准840~845 MHz和920~925 MHz，提出一种基于E形天线和共面倒F形天线相结合的设计方案，设计了一款新颖的双频微带天线。

The unusual electronic transport properties of highly doped conjugated polymers have attracted a lot of attention in both theory and experiment, In the Part Ⅱ, we calculate the transmissivity, conductivity and the I-V curve for dimerized polymers with side chains attached randomly to the backbone.

并且层厚随机涨落的效应随着层数的增加而得到加强。但具有孤子形状的共振态始终存在于能隙中并在入射光强增加时形成双稳。

Similar to other kind of communication systems, the radio frequency modular of RSU in DSRC include many parts such ad antenna, duplexer, low noise amplifier, local oscillator, mixer, filter, modulator, demodulator, and so on. It's difficult to analyze every part in the system fully, so the emphasis is mainly on the parts designed and implemented for the RSU by myself.

和其它通信系统类似，专用短程通信系统路边单元的射频部分包含天线、双工滤波器、低噪声放大器、混频器、本振、滤波器、调制解调器等多个功能模块，论文中要完整地介绍和分析每一个功能模块是困难的，因此本文主要介绍自己亲自完成的部分。

Can develop filters /duplexers or other functional modules independently.

能独立开发滤波器双工器及其他射频前端模块。

The results show that intensity of combined beams is closely related with diffraction efficiency and location of two gratings.

分析表明汇合级光强与两光栅具体的衍射效率和双光栅成像时的位置密切相关。

The Spanish hot-shot pointed to the heavens after opening the scoring with a stunning fifth minute volley and later admitted that the goals held extra significance ahead of the 20th anniversary of the Hillsborugh disaster.

这位西班牙射手在第5分钟以一脚惊世骇俗的凌空抽射破门后双手指天，赛后他承认他的这两个进球对他来讲在希尔斯堡惨案20周年之际有着特殊的意义。

Tunnel-junction-regenerated two active regions VCSEL lased under room temperature, which was agreed with the analyzed grown parameter.

符合模拟参数生长的双有源区隧道再生VCSEL实现了室温激射。

By use of anatomy sign method which depends on the double lineations from tricuspid annulus to coronary sinus and CS to inferior vena cava,type Ⅰ atrial flutter was ablated.

采用解剖标志法沿三尖瓣环至冠状静脉窦和CS至下腔静脉双连线射频消融治疗5例Ⅰ型心房扑动。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。