可选择的

Does some with JavaScript, but is still amateurish style. Starting to get into dynamic sites and how to connect to database.

但对可测性，可扩展性以及在不同框架下如何选择最合适的WEB设计工具尚无概念。

Based on Bezier curve continuance of first－order and second－order derivative, the characteristic vector equation of two Bezier curve is presented in point of intersection. The algorithm is not only of high accuracy with all of the interpolated points being on the curve theoretically, but also of very high speed in the real－time interpolation processes. The interpolation velocity does not change and the segment tolerance of interpolation can be control by selecting the parameter in cerement rationally every time.

为保证两段Bezier曲线在连接点处一阶导数、二阶导数连续，导出了两段Bezier曲线特征向量应满足的关系方程，Bezier插补法不仅在理论上可使所有的插补点落在曲线上，而且实时插曲补速度高，每次插补时可合理地选择参数增量，能使插补速度保证不变，也可控制弓高误差。

It can be concluded that to meet with the ideal separation effect in a relative short period, the following optional selection of experimental conditions should be carried on strictly: centrifuge rotor and gradient medium, which will influence separation capability; gradient density range, shape and slope, which is very important in separation degree; the methods of reorienting rotor,low and high rotor speed exchange and Gmax could be used in order to shorten separating time.

通过研究认为在相对短的时间内要达到理想的分离效果，应该对以下实验条件进行优化选择并严格控制：包括实验中影响分离本领的转头、梯度介质选择；为获得满意分离度应严格选择梯度的密度范围、梯度形状以及梯度的斜率；为了缩短分离时间，可采用重定向梯度、二次变速及Gmax等方法。

So it needs improving or alternating urgently. Some good germplasms for rootstocks for citrus have been picked out and introdcted into. Some somatic hybrids used as rootstocks have been selected through somatoplasm fusion. Some methods in early identification on stability of inherence and copatiblity and dwarf are explored, and they need improving. Rootstocks having some virtues have been selected, but they cannot take the leading place of trifoliate orange. The research method that the rootstocks are only compared with each other should be altered into that the rootstocks and given control measures or environmental conductions are connected to make the rootstocks compared with each other.

在砧木选择研究进展上，中国调查出和引进了一些优良的柑橘砧木种质资源，通过体细胞融合选育出一些可作为柑橘砧木的柑橘体细胞杂种资源；在柑橘砧木资源的遗传稳定性、嫁接亲和性和矮化性等早期鉴定上，探索出一些有待完善的鉴定方法；在砧木选择上，选出一些具有某些优点的砧木，但尚不能冲击枳砧的主导地位，并且选择研究方法有必要把现行单纯的砧木比较改为与砧木种类、栽培技术或环境条件相结合进行比较。

UDZ Series liquid level indicator of flap disassembly fast and convenient, the installation position can be arbitrary choice, free to change the direction of observation, thus instrumented great visibility; UDZ series of cost-effective liquid level was significantly higher than that used multiple sets of glass plate liquid level of cost performance; UDZ series of liquid level indicator, the sender's device, as well as the liquid level with the main transmission medium within the complete separation of the measured structural design, so that level gauge in the job has pressure (up to 320KG), toxic and inflammable conditions, with absolute safety and reliability; UDZ-3 type uses innovative design, improve the sensitivity of the sensor, and its near-zero drift FarEasTone signals and long-term stability so that it has always been at the scene consistent level instructions; sensors and the main body has a certain interval, which can be solved effectively under high-temperature liquids (up to 480 ) remote detection and control; antifrost type UDZ Series Level Gauge, are I plant the patented product (Patent No.: ZL00221022 3), guarantees that the use of cryogenic liquid level gauge is not freezing (such as liquid CO2), the effective guarantee of the level of a normal job.

UDZ系列液位计的翻板指示器拆装快捷方便，安装方位可任意选择，观察方向可随意改动，因而仪表指示的可视度很大；UDZ系列液位计的性能价格比明显高于采用多组玻璃板式液位计的性能价格比；UDZ系列液位计的指示器，发讯器、以及液位变送均与主体内被测介质完全隔离的结构设计，使液位计工作在有压（可达320KG）、有毒和易燃的工况下，具有绝对的安全性和可靠性；UDZ-3型采用了新颖设计，提高了传感器的灵敏度，其远传信号近乎零温漂和长期稳定性使其始终于现场液位指示保持一致；传感器和主体有一定的间隔，因而能有效地解决高温液体（可达480℃）远距离检测和控制；防霜型UDZ系列液位计，是我厂的专利产品（专利号：ZL00221022·3），保证了在低温液体上使用液位计不结冰（如液体CO2），有效的保证了液位计的正常工作。

This thesis is to study the wave pattern selection in the heterogeneous reaction-diffusion systems, including propagation direction of target waves induced by a localized inhomogeneity, large heterogeneity maintained sinklike spiral waves in oscillatory media, and the competition of coherent wave patterns sustained by a localized inhomogeneity with turbulent waves in an excitable medium.

本论文主要研究非均匀反应扩散系统中波斑图的选择，如振荡系统中缺陷对其所诱导靶波传播方向的选择、缺陷所维持的一种新螺旋波－汇螺旋波的形成以及可激发系统中，缺陷诱导的有序波斑图和时空无序态的竞争和选择。

Based on a thorough analysis of the experimental results, a coupling mechanism of the catalytic selective oxidation and non-catalytic partial oxidation in which the surface adsorbed 〓 species and the lattice 〓 species take part synergically.

在全面分析实验结果的基础上，提出了一个由表面吸附氧种〓和晶格氧种〓协同参与的甲烷催化选择氧化与气相非催化部分氧化相耦合的反应机理，催化剂的参与既在表面开辟了生成〓和HCHO的新途径，又可将气相反应中的强氧化型物种转移到催化剂表面，形成有利于选择氧化的表面活性氧种，同时避免了气相中强氧化型物种浓度过高而导致选择氧化产物深度氧化。

If peasants are in a heavy pressure from capital restriction, they may have to sell at the "three sale fastigiums" and lose their opportunities of maximizing their sale profits.

回归结果在整体上验证了本文的整体分析及具体假说，农户的农作物品种越特殊、农户家庭经济中农业比重越高、户主信息可得性越强，农户越倾向于选择&新型销售方式&；农户面临的资金约束是农户选择在&三大销售高峰期&销售的最重要原因，当农户的资金压力形成硬约束时，农户没有选择实现利润最大化的销售时机的自由。

This equipment has the following big advantages: 1 can change color, solid color to dress random, spell color, repair, the old dress that includes cotton of pair of pure cotton, pure hemp, pure wool, real silk, man-made, nylon, leather, acrylic fibbers, polyvinyl chloride fibber and its blending undertakes face-lifting.

该设备具有以下几大优点：1 可对服装任意改色、固色、拼色、修补，包括对纯棉、纯麻、纯毛、真丝、人造棉、尼龙、皮革、腈纶、氯纶及其混纺的旧服装进行翻新。2 办个服装翻新店总投资9000元，包括技术费、设备费、加盟费，一人操作即可投入营业。3 翻新一件服装只需成本2～3元，收费15～25元不等，是下岗职工、退休、待业人员的最佳选择。4 全部采用进口服装翻新工艺，可单件翻新，也可多件同时翻新。

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。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。