可密封的

It contains quadratic photosynthetic chamber and columned soil fixing body, wherein soil fixing body of canopy leaf chamber bottom set with knob basal portion being corrugation notch, capable of easy inserting amboceptor in soil to form inclosed canopy leaf chamber, amboceptor upper port inosculation with photosynthetic chamber lower wall round opening to make canopy leaf chamber intracavity forming one integral, photosynthetic chamber upper wall sealed by two side glue and photosynthetic film to ensure photosynthetic chamber steady light permeability, photosynthetic chamber sidewall installed one small size fan controlled by external battery and switch, fan capable of rapid making canopy leaf chamber gaseous reaching equalization.

本发明涉及一种用于测定植物冠层群体光合作用的冠层叶室，由正方形的光合室和圆柱状的土壤固定体两部分结合而成，冠层叶室下部土壤固定体设有把手，基部为波纹状切口，可以很容易地把固定体插入土壤中形成密闭的冠层叶室，固定体上口与光合室底壁的圆形开口吻合，使冠层叶室的内腔形成一个整体；光合室顶壁用双面胶和光合薄膜密封，以保证光合室稳定的透光性能；光合室侧壁内安装一个小型风扇，由装在侧壁外的电池和开关控制，风扇可使冠层叶室内的气体迅速达到平衡。

The company has the top advanced PQ35 plat and pre-technology. Among them, the product pack adopts much transport technology and mode of production, such as EHB, auto-operated electric car, slippery skiing that can carry out different types of assembly, new door's cementation technics and so on. The products' paint-pack use the top-grade e-coating, super filter wash, immerse to wash, top-advanced PVC series of material, machinal hand, adding cup type auto static electricity to spray method. The product's welding pack use the manufacturing technology for car body, such as the top-advanced Schottplatt laser check, laser weld, more-square welding, intermediate frequency's welding three-piece plat. The product's stamping use high-speed mechinal arm auto product line, KUKA dismantling robot, optics shoot slab stock orientation, and 800-tun coordinated auto pressure machines.

大众公司拥有着当今世界最先进的 PQ35平台和一大批世界先进的前沿技术，其中产品的总装配采用了可实现不同车型共线装配的滑橇、 EHB 、自动运行的电动小车、全新的车门密封条粘接工艺等输送技术与柔性化生产方式；产品涂装采用了世界一流的电泳、超滤液冲洗、浸洗、沥水和世界最先进的 PVC 系列材料及机械手、加杯式自动静电喷涂方式；产品焊装采用了目前世界最为先进的 Schottplatt 激光检测、激光焊接、大面积机器人焊接、中频焊接三层板、冲联等车身制造技术；产品的冲压采用了高速机械臂全自动生产线、 KUKA 拆垛机器人、光学摄像板料对中定位、及800吨三坐标式多工位自动压力机等。

The application of the alloy that can effectively reduce the release of hydrogen, the special technique in manufacturing grid, and the appropriate match of active materials of both negative plates and positive plates, all these enable spiral valve-regulated sealed lead-acid battery, greatly restrain the release of hydrogen from negative plates, at the same time the generated oxygen, due to overcharge of positive plates, arrive at negative plates through the diaphragm and compose with lead in the negative, thus enable the recombination of gas inside of the battery and prevent the case of water loss so that water addition is free.

选择特点：有较高的放电电压曲线，使用环境宽松，能完全释放能量，适用于1min以内的支撑时间，与GCplus15配合使用，可保障变频器恒定的直流电压。卷绕式阀控密封铅酸蓄电池通过采用具有极高析氢过电位的合金通过特殊工艺制造板栅，同时对正负极活性物质量的合理匹配等工艺措施，使得负极上发生的析氢过程得以最大限度地受到抑制，同时正极因过充电所产生的氧气通过隔膜到达负极，并与负极上的铅发生反应，生成水，这样便使得电池内部气体的再复合，防止失水，实现免维护。

Through an analysis of the electromagnetic force on the electric heated rod, the authors work out the equation for calculating the electromagnetic force on unit area of the rod, and indicate that radial vibration of 100Hz will occur when the rod is in operation, which have little effect on the strength and sealing of the rod owing to minor amplitude.

电热杆的交流阻抗远大于导线的电阻，因此主要发热体为抽油杆，可快速有效地加热杆外的原油，而导线不会过热，有利于导线的绝缘与保护。通过对电热杆所受电磁力的分析，推导出了抽油杆内表面单位面积上所受电磁力的计算公式，从而得知电热杆工作时将产生沿径向向外的径向振动，振动频率为100Hz。但由于振幅较小，这种振动不会对抽油杆的强度和密封产生明显的不利影响。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。