耐光的

Leaf morphological and physiological acclimation to three irradiance levels (5 %, 25 % and 50 % daylight) were investigated in seedlings of the following four tropical rainforest tree species. Macaranga denticulata and Paravallaris macrophylla are light-demanding species, and Myristica yunnanensis and Garcinia paucinervis are shade-tolerant species.

摘 要 ：研究了西双版纳热带雨林 2 种喜光树种中平树、倒樱木和 2 种耐荫树种云南肉豆蔻、金丝李幼苗叶片光合和形态解剖特征对 3 种不同生长光强（ 5 %， 25 %和 50 %相对光强）的适应。

The utility model has the following advantages: to embed the character layer with night-light display into the groove of the top face for the key body and cover with the transparent protection surface layer, which causes the character with night-light display against the wear; the transparent protection surface layer is embedded into the groove, which is easily fixed and causes the appearance of the key body smooth and beautiful.

本实用新型具有如下优点：将夜光显示字符层嵌入键体的顶面凹槽中，并覆盖上透明保护表层，使夜光显示字符耐磨损，透明保护表层镶嵌凹槽内，不但易固定，而且键体表面平整美观。

A novel farm film with weatherability and non fog-drop and light trans form was produced by adding rare earth light transform agents and other auxiliar ies in polyethylene resin.

将稀土转光粉和其他助剂添加到聚乙烯树脂里，制得新颖的耐候光转换无滴农膜。

Ed spot/projector light adopt foreign high power led bulb,it is equipped high-efficiency Condenser lens,beautiful Lamp shape,High-brightness, Low power ,Low calorie,Impact resistance,shakeproof,lifespan is can be 2000 hours long.

ED投光灯采用进口大功率LED，配有高效率聚光透镜，精美的灯具外型，具有高亮度，低能耗，低热量，耐冲击，防震，无紫外和红外辐射，低电压下工作安全可靠，寿命长达20000小时。

It was showed hyperbranched polyester was more than commercial resinous polyols in impact resistance and transparency of matt topcoating film,and its extinction was worse.

以超支化聚合物作为基料与脂肪酸等单体合成了超支化树脂，并利用红外光谱，GPC等仪器对超支化树脂进行表征；同时研究了超支化树脂在聚氨酯哑光面漆中的应用，研究表明：实验所制备的超支化树脂虽然消光效果较差，但是采用超支化树脂部分代替商业哑光树脂可以改善漆膜的透明性及耐冲击性。

The cell cycle and apoptosis and the expression of P-pg, bcl-2, P53 in the MG63 and MG63/R cell lines were analyzed by flow cytometry. Results The resistance index of the MG63/R cells to cisplatin was 83.557±4.841. The cells also had resistance to doxorubicin, vincristin, methotrexate and cyclophosphamide. Disordered structure of the MG63/R cells was observed through microscopy. The cells appeared in triangle, polygon and polynucleation. The increase of granular endoplasmic reticulums and apophyses was observed through transmission electron microscopy. The proliferation ability of MG63/R increased significantly, with a low apoptosis index.

结果 经顺铂186d的诱导，建立了MG63/R，其对顺铂的耐药指数为83.557±4.841，对阿霉素、长春新碱、氨甲基蝶吟、环磷酰氨亦产生不同程度的交叉耐药；光镜观察可见MG63/R细胞排列不规则，形态呈三角形、多角形及多核现象；透射电镜显示MG63/R细胞表面突起增加，粗面内质网丰富；细胞周期分析显示细胞增殖能力明显增加而细胞凋亡明显降低；MG63/R细胞 P-pg、bcl-2阳性表达较MG63细胞明显增加，P53表达则明显降低。

The effects of compositions on UV prinking ink,such as prepolymer,monomer,photoinitiator and pigment on curing rate,cohesive force,resistency and other properties were investigated. The range analysis and variance analysis method were applied to the assessment of results. The results based on orthogonal experiment design indicated that an optimum component composition of UV printing ink can be obtained from prepolymer PQ611,monomer A,photoinitiator B and active amime.

摘 要：探讨了预聚物、单体、光引发剂、颜料等组分对UV油墨固化速度、附着力、耐抗性等性能的影响，应用正交实验设计方法对UV油墨各组分种类进行选择，对正交试验结果做极差分析及方差分析，结果表明：根据预先设计的组分比例，采用预聚物PQ611，单体A，光引发剂B，活性氨为加速剂，获得性能较好的UV油墨。

Hebei Sheng million Wire Mesh Fence Factory is a wire drawing, welding net, welding, cutting, press brake forming, IMPREGNATION finished installation, the production of service capabilities, large-scale specialized metal guardrail, Fence manufacturer Founded in May 2005, the Company specializes in highways and railways, fencing wire mesh, separation, isolation network, fencing, protective nets, iron railing, guardrail and other sports, the company currently employs more than 50, including engineers, a , design, accounting, five, more than 30 types of electric welder, a dozen of their own intellectual property rights, is the production of 15 major series, more than 90 models, blocking more than 500 kinds of care products, by polishing, rust, Straightening , welding, galvanizing, IMPREGNATION made with corrosion-resistant, anti-aging, acid, non-fading, surface smooth and bright, comfortable feel and so on.

护栏网厂是一家集拔丝、焊网、焊接、裁剪、折弯成型、浸塑成品安装，生产服务能力、规模较大的专业化金属护栏、隔离栅生产厂家，成立于2005年5月，本公司专业生产公路、铁路的护栏网、隔离栅、隔离网，防护栏，防护网、铁艺护栏、体育场护栏等，公司现有员工50多名，其中工程师一名、设计、会计五名，各类电气焊工30多名，拥有自主知识产权十余项，现生产15大系列、90多个型号、500多种护拦网产品，产品经抛光、除锈、调直、焊接、镀锌、浸塑而成，具有耐腐蚀、抗老化、耐酸碱、不褪色、表面平整、光亮、手感舒适等优点。

The results showed that as low temperature became intensified and prolonged, the leaves of pepper seedling presented increased POD activity, decreaseds SOD and CAT activities, increased MDA content and increased plasm-membrane permeability; the critical temperature (15℃/8℃) showed stronger effects on pepper plants than the lower temperature (19℃/12℃); under the lower temperature, the weak light of 90μmolm^(-2)s(-1) could make the POD activity increase much more, but reduce the decrements of the SOD and CAT activities, and the increments of the MDA content and plasm-membrane permeability, and under the critical temperature (15℃/8℃), an opposite situation occurred.

结果表明：随着低温弱光胁迫程度和时间的增加，辣椒幼苗叶片中POD活性提高，但SOD和CAT活性下降，MDA含量增加，细胞膜透性增大；就温度而言，临界低温(15℃/8℃)比偏低温(19℃/12℃)对植株的影响更为显著；在偏低温(19℃/12℃)下，弱光90μmolm^(-2)s(-1)使POD活性上升更大，而SOD和CAT活性的下降、MDA含量的增加和细胞膜透性的增大更小，而在临界低温(15℃/8℃)下则相反；陇椒2号耐低温弱光能力强，各项指标均优于七寸红。

It was found that the main reason why SBS containing oil was easy to yellow was that there is plenty of polycyclic aromatic hydrocarbon in the extender oil,PAH can easily turned quinones with yellow.Antiyellowing performance of SBS can be only developed in a little extent when antioxidants were added.The anti-yellowing performanc...

研究结果表明，充油SBS产品变黄的主要原因是油品中的稠环芳烃在光氧环境中易转化为黄色的醌，添加抗氧剂对延缓产品变黄的作用不大，通过催化加氢消除填充油中的芳烃或添加适当的光稳定剂可以提高产品的耐黄变性能。

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