底面

This paper researches transmission behavior and osmosis of water and chlorid in epoxy and polyurethane coatings and combination of those organic coatings by the measurement of water vapor transmission ,water soption.

采用测定涂层渗水率、吸水率、渗氯离子以及盐雾加速老化常规实验方法研究水、Cl-在环氧富锌底漆、环氧云母氧化铁中间漆、灰色聚氨酯面漆及其组合涂层中的传输、渗透行为。

This is often caused when air builds up and is trapped underneath the dough as the pizza bakes.

这些泡泡一般都是因为在烤制的过程中，和在面里的空气，或是压在锅底的空气上升形成的。

The main varieties are: Blending alkyd paint, alkyd varnish, alkyd enamel, paint phenolic resin, amino paint, distempers Mastics, high-grade polyurethane paint, acrylic paint, metallic paint, car paint, bitumen paint, polyester wood at the end of paint and finish, the middle-grade interior and exterior wall latex paint.

主要品种有：醇酸调合漆、醇酸清漆、醇酸磁漆、酚醛树脂漆、氨基漆、硝基漆、高档聚氨酯漆、丙烯酸漆、金属漆、汽车漆、沥青漆、木器聚酯底漆及面漆、中高档内外墙乳胶漆。

According to the Box-Benhnken design principle,the method of response surface method with 3 factors and 3 levels was used. The factors influencing the technological parameters were determined by means of regression analysis. Response surfaces were finally graphed with the yield as the response value. The synthesis conditions were optimized as follows:reaction reagent was NBS,stoichiometric proportion between NBS and anhydrovinblastine was 1.07; the dosage of TFA was 22 mL/L; reaction temperature was －68 ℃ and duration was 90 min.

在单因素实验基础上，根据Box-Benhnken实验设计原理，采用三因素三水平的响应面分析法，研究了各个因素及其交互作用后，得到了合成7′-Br-脱水长春碱的最佳工艺条件：以二氯甲烷为溶剂，采用NBS为溴代剂，其用量与底物的物质的量比为1.07∶1，TFA的加入量22 mL/L，在－68 ℃下反应90 min，终止反应后，得到卤代产物。

Since the company was incepted, it committed to research and to develop green, environmental friendly products.

目前，公司产品涉及各类树脂稀释剂，PU面﹑底漆稀释剂，硝基稀释剂及各类天那水等品系。

Native Americans invented them, along with chewing gum, ponchos, chocolate, snowshoes, parkas, and moccasins.

土著美国人发明了他们，同时口香糖，披风，巧克力， snowshoes ， parkas和硬底软面拖鞋。

The upper part of the footwear is made of artificial leather and is decorated with spangles and beads.

该童鞋是塑料底，鞋里是塑料和皮革质地，鞋面是人造革材质。

Epoxy Floor Paint Series, cement floor paint products have: BAYDERM, in Tu,solvent-free epoxy self-leveling, low-odor solvent-Ping Tu topcoat, waterborne epoxy-Ping Tu, epoxy anti-static floor paint ( aqueous / oily), polyurethane epoxy floor paint, acrylic acid Series Paint: one-component acrylic floor paint, acrylic Weatherability Exterior Paint, Paint Stadium, cementpaint, mold bacteria and outside the wall paint.

环氧树脂系列地坪漆、水泥地板漆产品有：底涂、中涂、无溶剂环氧自流平面涂、低气味溶剂平涂面漆、水性环氧平涂、环氧防静电地坪漆，环氧聚氨酯地板漆，丙烯酸系列涂料：单组份丙烯酸地坪漆、耐候丙烯酸外墙漆、球场漆、水泥彩瓦漆、防菌防霉内外墙涂料。

The ray from the plasma lamp will go through into the light pipe with little incident angle after reflection by the reflector, and then the total reflection of the ray will occur among the prismatic reflecting films. Some ray may come to the end mirror and will be reflected back, and only a little of rays pass through the prismatic reflecting films, most of the rays will go forward by the action of the bottom light extracting surface and go out to be lighting.

等离子灯球发出的光线经过反射器反射后，以很小的入射角进入到导光管，光线在棱镜反光膜管子内进行全反射，到达丙烯酸树脂管端底镜面的光线，再反射回到管子内部，只有少量的光线透过棱镜反光膜出来，最终大部分光线通过管子底部的光线提取面引出管外，传送到所需要照明的宽广区域（见图7）。

Here,"Heidi teeth even three-star flag" was Sanyuanli Anti-British struggle of the command flag, the British war bogey Heiqi, to see this flag on the pale exclaimed:"who fought to the death!"

这里&黑底牙边三连星旗&曾是三元里抗英斗争的指挥旗，英军打仗忌黑旗，一见到这面旗就失色惊呼：&打死仗者来了！&

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。