选用

According to the characteristics of weather conditions, suitable sensors and data gather system are selected and used to measure greenhouse microclimate automatically.

针对温室小气候的特点，选用合适的传感器及相关的数据采集系统对温室内的小气候环境进行了自动测量。

The glassy carbon and powder microelectrode have respective trait. It can be chosen to measure the activity of catalysts based on experimental requests.

玻碳电极和粉末微电极各有特点，测试催化剂的电催化活性时可以根据实验要求选用。

Lower concentration of the microinjected DNA, choosing CZB and zygotes with good quality can enhance efficiency of microinjection.

选用较低的基因浓度，良好的操作介质CZB，使用质量好的受精卵，会提高显微注射的效率。

Because steam activation carbon has a narrower and more extensive microporosity than carbon dioxide activation carbon, stream is the only oxidising agent in this paper.

考虑到水蒸气活化活性炭比二氧化碳活化活性炭具有更小空隙结构和更宽的孔径范围，所以本文中只选用水蒸气作为活化剂对热解炭进行了活化。

The Bit-slice computer Development System (BCDS 29/20) adopts IBM PC/XT as its host machine and its hardware comprises of microprogram controller, GP 256 programmer and HP 1630A logic analyser, while its software comprises of microcode generating, simulating, debugging and some other supporting programs.

BCDS29/20位片计算机开发系统的性能指标超过美国AMD公司1981年推出的Amsys29/10产品。该系统选用IBM PC/XT作为宿主机，硬件系统包括微程序控制器、GP256编程器和HP1630A逻辑分析仪等部件，软件系统包括微码生成、模拟、调试及其它支持软件。

Hardware subsystem specifications: machine word length is16 bits, 64 instructions, arithmetic unit consists of bit-slice IC chips, control unit uses microprogram ming scheme and supports dynamic microprogram ming.

运算器部件选用位片结构器件实现，控制部件采用微程序方案，支持动态微程序设计。

If a child in order to prevent prickly heat, the best selection of baby powder dedicated heat miliaria.

如果为了防止孩子出痱子，最好选用婴儿专用的热痱粉。

In my experiments, I use the anemone, as my material. My major topic is how the calcium phosphates preserve the details of the cell structure by infiltrating into the cells first and following mineralize on the structure inside the cells with environmentally conditional variations.

实验中我选用了海葵，一种腔肠动物作为实验材料，研究的方向主要在於磷酸及钙如何进入到海葵的细胞中，然后随著环境pH值的变化沈积在细胞内部，将细胞的形状和轮廓给保存下来。

The traditional mineralizer fluorine and sulfur are replaced by basalt and slag.

矿化剂选用了玄武岩和矿渣替代了传统的氟硫矿化剂。

Centrifugal energy saving analysis and measures: 1 improve the efficiency of centrifugal pumps a first step, in the selection of comparison, when many suppliers Selection program, in considering the cost-effective choice as far as possible under the premise of efficient programs; the second step , accredited professionals must Mill producers, affecting the pump efficiency of the key components such as impellers, pump body, pump cover, diversion devices, such as the manufacture of quality producers, especially for the airfoil impeller , outlet angle, leaves the sub-degrees, the shape of flow channel, to control the quality of finish, etc., so that products are delivered in the current production under the conditions of highly efficient products; the third step, the scene in the production of installation and debugging process, pump to ensure a solid foundation, with the driving machine for good, before and after valve flexible piping layout design is reasonable, on-site control is feasible and safe, the complete and accurate monitoring instrumentation to ensure that pump operation can carry out real-time monitoring; fourth step , are at long-term operation of water pumps necessary to pay attention to the equipment inspection and found anomalies reflect real-time reporting, in the normal minor repairs, overhaul cycle, to deal with the replacement of wearing parts inspection to ensure the pump's long-term safe and efficient operation.

第一步，在选型时多比较各供应商的选型方案，在考虑性价比的前提下尽量选用效率高的方案；第二步，派驻一定的专业人员驻厂监制，对影响水泵效率的关键零部件如叶轮、泵体、泵盖、导流器等的制造质量进行监制，尤其对叶轮的翼形、出水角、叶片的分度、流道的形状、光洁度等质量进行控制，使交付的产品是在当前的生产条件下的高效率的产品；第三步，在生产现场的安装调试过程中，要保证泵的基础牢靠，与驱动机对中良好，前后阀门开关灵活，管道布置设计合理，现场控制安全可行，各运行监控仪表齐全准确，保证泵的运行过程能够进行实时监控；第四步，是在水泵的长期运行中要注意对设备的点检，发现异常情况即时反映汇报，在正常的小修、大修周期中，应对各易损件进行检查更换，保证泵的长期高效安全的运行。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐