查询词典 metal detector

The activity of thorium was measured by using a HPGe detector and a planar HPGe detector. 238 Th has been identified for the first time by measuring the growth and decay of the γ rays from its daughter nucleus 238 Pa.

使用两台高纯锗探测器测量了样品的γ射线活性，观测到了238Th的β－衰变子体238Pa的γ射线的生长、衰变行为，测定238Th的半衰期为9.4±2.0min

Including import Germany DECKEL CNC tool grinder, SODICK walking CNC wire EDM, CNC boring machine coordinates, CNC machining centers, CNC lathes, CNC curve grinding machine, CNC milling machine, with forging, welding, heat treatment capacity, detector has a coordinate, import five coordinates Germany ZOLLER tool detector, such as precision testing equipment.

包括进口德国DECKEL数控刀具磨床、SODICK数控慢走丝线切割机、数控座标镗床、数控加工中心、数控车床、数控曲线磨床、数控铣床，具有锻造、焊接、热处理能力、拥有三座标检测仪、进口德国ZOLLER五坐标刀具检测仪等精检测设备。

This paper brought forward some new design schemes based on the principle and signal processing algorithm of velocity detector, and introduced the hardware construction of the velocity detector based on Depolarizer and S3C2410A microprocessor. The high-efficient ARM program of radical 4-FFT was designed according to the architecture characters of ARM core. In the process of code designing, the instruction scheduling and register allocation were controlled subtly, and the fixed-point number's storage format and computing method of float number were provided. Barrel shifter and 5-lever pipeline were fully utilized and the pipeline interlock was avoided.

针对多普勒测速仪的基本原理和信号处理算法提出了新的设计方案，介绍了由多普勒收发前端和三星S3C2410A处理器构成的测速仪的硬件结构；并结合ARM内核设计特点实现了基4时间抽取快速傅里叶变换算法，针对大多数ARM处理器硬件上不支持浮点运算，提出了把浮点数以定点数格式存储和计算的方法，充分利用桶型移位器和5级流水线，避免了流水线互锁问题。

Based on information-theory, a lower bound on the size of the detector set is derived. Detector Generating algorithm is described. The performance of Artificial Immune Intrusion Detection System is better than the normal intrusion detection system based on knowledge engineering.

免疫原理在入侵检测领域的应用是一个刚刚兴起的研究，它的目的是使检测系统具有分布性、多样性、自适应性、自动应答和自我修复的特点，具有检测异常现象、利用不完备信息进行检测的能力，这是原有系统达不到的。

The DIDAPPER (distributed intrusion detector with apperception) system presented in this paper is a distributed intrusion detector with apperception.

DIDAPPER( distributed intrusion detector with apperception)系统是一种具有认知能力的分布式入侵检测系统。

The computer separately connects and controls the I/O end and A/D converter; the I/O end connects and controls the X, Y axis driving circuit and the semiconductor laser; the X, Y axis step-by-step driving circuit connects and controls the X, Y step-by-step electrical machines to control the dimensional platform; the beam of the semiconductor laser passes through the focusing drawtube with 0.1mm diameter to form the facula with the diameter less than 0.1mm; the facula irradiates on the detector surface of the XY dimensional displacement platform to produce the corresponding electric signals; the detector surface connects the A/D converter through the amplifier; the electrical signal is amplified and is converted into the data signal by the A/D converter and is sent to the computer for processing.

由计算机分别连接并控制I/O端口和A/D转换器，I/O端口分别连接并控制X、Y轴步进电机驱动电路和半导体激光器，X、Y轴步进电机驱动电路分别连接并控制X、Y轴步进电机，从而控制二维位移平台，半导体激光器的光束经过设有直径0.1mm小孔的聚焦镜筒形成＜0.1mm直径的光斑，光斑照射于设在XY二维位移平台上的探测器表面使其产生响应的电信号，探测器表面经放大器连接A/D转换器，电信号经放大器放大后，由A/D转换器转换为数据信号送计算机处理。

In this example, it is assumed that a multifunctional cell phone has both an analog detector and a digital detector, one of which must be selected to drive the final audio output to the ear piece.

在这个例子中，假设一个多功能的手机同时具有模拟和数字探测器探测器，其中一个必须选择驾驶最后的音频输出到耳片。

Switch between two audio signals in a single phone, one from a digital baseband detector, the other from an analog baseband detector, to drive the final audio output to an ear piece.

两个音频信号的切换一个电话，从数字基带探测器之一，从一个模拟基带探测器等，以推动最后的音频输出到一个耳片。

The wireless earflap includes a host machine and a battery module, the host machine is equipped a first plug hole and a second plug hole for the battery module plugging, the host machine further includes a charge control module, the charge module comprises a first voltage detector, a second voltage detector, a charger, a first switch, a second switch, a third switch and a fourth switch.

该无线耳机，包括一主机及一电池模块，主机设有一第一插孔及一第二插孔，供电池模块插接，主机内更包括一充电控制模块，充电模块由一第一电压侦测器、一第二电压侦测器、一充电器、一第一开关、一第二开关、一第三开关及一第四开关组成。

Ultrasonic and eddying detector are not appropriate to detect flaw,and high pressure whater detector can only detect a little flaws such as hole but the speed is low,the operation is complex.

超声、涡流等探伤方法不适合；水压法只能检测穿透型缺陷，且速度慢、操作复杂。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48