多种选择

There are many kinds of animal models that are fit for implant studies. Different opinions lie in the selection of genus, experimental parts and size of bone defects.

用于种植技术研究的动物模型有多种，在选择动物的种属、部位和骨缺损的大小，各方观点不一。

Production of a variety of different styles and the weight of chips, monochrome, two-, three-chip options, but also based on customer demands silk screen / gilt / silver hot-LOGO, double stickers, coins, dice key chain processing.

生产多种款式和不同重量筹码，有单色、双色、三色筹码可供选择，还可根据客户要求丝印/烫金/烫银LOGO、双面贴纸、筹码、骰子钥匙扣加工。

Production of a variety of different styles and the weight of chips, monochrome, two-, three-chip options, but also based on customer demands silk screen / gilt / silver hot-LOGO, double stickers, coins, dice key chain proces

生产多种款式和不同重量筹码，有单色、双色、三色筹码可供选择，还可根据客户要求丝印/烫金/烫银LOGO、双面贴纸、筹码、骰子钥匙扣加工。

Production of a variety of different styles and the weight of chips, monochrome, two-, three-chip options, but also based on customer demands silk screen / gilt / silver hot-LOGO, double stickers, coins, dice key chain proce

生产多种款式和不同重量筹码，有单色、双色、三色筹码可供选择，还可根据客户要求丝印/烫金/烫银LOGO、双面贴纸、筹码、骰子钥匙扣加工。

Production of a variety of different styles a n d the weight of chips, monochrome, two-, three-chip options, but also based on customer demands silk screen / gilt / silver hot-LOGO, double stickers, coins, dice key chain processing.

生产多种款式和不同重量筹码，有单色、双色、三色筹码可供选择，还可根据客户要求丝印/烫金/烫银LOGO、双面贴纸、筹码、骰子钥匙扣加工。

Self-adjustable type turning rolls is applied to the welding of cylinders and can be self-adjusted to the size of the cylinder. Various specifications are available for the users and large-tonnage rolls can be customized.

自调式滚轮架适用于圆形筒体的焊接，可根据筒体大小自行调节，有多种规格可供用户选择，大吨位的可代为设计制造。

Also worth noting is the ketones, esters, ethers have a wide range of solubility of rubber in the seal material selection to avoid making mistakes.

另外值得注意的是酮、酯、醚对多种橡胶有溶解性，在选择密封材料时避免出错。

This experiment counts based on the direct digital frequencysynthesis the basic principle, fully II and hardware LT - IV testedthe box using ALtera Corporation's FPGA chip FLEX10 in softwareMaxplus in the platform to complete the DDS system design, hasdesigned a frequency and the phase may control has the sine and thecosine output direct numeral frequency synthesizer, was allowedto control and to observe the profile through the downloading boardand the Oscilloscope , completed in the enhancement request hascontrolled the frequency and the phase through the downloading boardon pressed key, as well as many kinds of profiles, includingsquare-wave, saw-tooth wave, triangle wave and cosine wave choiceoutput, In addition on digital tube dynamic demonstration productionprofile frequency, and produces the tbl document from the simulationprofile, simultaneously draws the profile using the matlab higherorder language.

帮忙翻译一下，谢谢本实验基于直接数字频率合成计的基本原理，充分利用ALtera公司的FPGA芯片FLEX10在软件MaxplusⅡ和硬件LT—IV实验箱的平台上完成了DDS系统的设计，设计了一个频率和相位均可控制的具有正弦和余弦输出的直接数字频率合成器，通过下载板和示波器可以控制和观察波形，在提高要求中完成了通过下载板上的按键来控制频率和相位，以及多种波形，包括方波、锯齿波、三角波和余弦波的选择输出，此外在数码管上动态显示生成的波形频率，并且从仿真波形中生成tbl文件，同时利用matlab高级语言画出波形。

This experiment counts based on the direct digital oscilloscope frequencysynthesis the basic principle, fully II and hardware LT - IV testedthe box using ALtera Corporation's FPGA chip FLEX10 in softwareMaxplus in the platform to complete the DDS system design, hasdesigned a frequency and the phase may control has the sine and thecosine output direct numeral frequency synthesizer, was allowedto control and to observe the profile through the downloading boardand the oscilloscope, completed in the enhancement request hascontrolled the frequency and the phase through the downloading boardon pressed key, as well as many kinds of profiles, includingsquare-wave, saw-tooth wave, triangle wave and cosine wave choiceoutput, In addition on digital oscilloscope tube dynamic demonstration productionprofile frequency, and produces the tbl document from the simulationprofile, simultaneously draws the profile using the matlab higherorder language.

帮忙翻译一下，谢谢本实验基于直接数字频率合成计的基本原理，充分利用ALtera公司的FPGA芯片FLEX10在软件MaxplusⅡ和硬件LT—IV实验箱的平台上完成了DDS系统的设计，设计了一个频率和相位均可控制的具有正弦和余弦输出的直接数字频率合成器，通过下载板和示波器可以控制和观察波形，在提高要求中完成了通过下载板上的按键来控制频率和相位，以及多种波形，包括方波、锯齿波、三角波和余弦波的选择输出，此外在数码管上动态显示生成的波形频率，并且从仿真波形中生成tbl文件，同时利用matlab高级语言画出波形。

To complete the DDS system design, hasdesigned a frequency and the phase may control has the sine and thecosine output direct numeral frequency synthesizer, was allowedto control and to observe the profile through the downloading boardand the oscilloscope, completed in the enhancement request hascontrolled the frequency and the phase through the downloading boardon pressed key, as well as many kinds of profiles, includingsquare-wave, saw-tooth wave, triangle wave and cosine wave choiceoutput, In addition on digital tube dynamic demonstration productionprofile frequency, and produces the tbl document from the simulationprofile, simultaneously draws the profile using the matlab higherorder language.

本实验基于直接数字频率合成计的基本原理，充分利用ALtera公司的FPGA芯片FLEX10在软件MaxplusⅡ和硬件LT—IV实验箱的平台上完成了DDS系统的设计，设计了一个频率和相位均可控制的具有正弦和余弦输出的直接数字频率合成器，通过下载板和示波器可以控制和观察波形，在提高要求中完成了通过下载板上的按键来控制频率和相位，以及多种波形，包括方波、锯齿波、三角波和余弦波的选择输出，此外在数码管上动态显示生成的波形频率，并且从仿真波形中生成tbl文件，同时利用matlab高级语言画出波形。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。