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hard plastic tube
相关语句
  硬塑料管
     At present, the common underground pipelines are steel tube, reinforced concrete pipe, and PVC hard plastic tube. The cost of them is much high and it is also difficult to lay out.
     目前常用的地埋管有钢管、钢筋混凝土管、PVC硬塑料管 ,这些管道的成本都较高 ,且施工难度大。
短句来源
  “hard plastic tube”译为未确定词的双语例句
     The hard plastic tube or cup with 250mL volume,or plastic bag with 6cm×12cm size were suitable for container nursery of Pinus massoniana.
     马尾松容器育苗适宜的容器为250mL的硬质塑料管(杯)和6 cm×12 cm塑料袋。
短句来源
     Method A hard plastic tube (with a diameter of 0.8mm and a length of 3mm) was put into a rat vertebral canal (T 10 ). Three days later the TUNEL mark was employed to detect the death style.
     大鼠胸10 椎管后方放置0 .8mm 、长3mm 的硬质塑料管,术后第3d 运用荧光原位末端标记法( T U N E L标记) 发现在损伤中心灰质、白质均存在细胞凋亡,其中白质传导束凋亡细胞明显。
短句来源
     Di-cannula with intra-cannula consisted of hard plastic tube can be used in drainage.
     引流应使用内套管是硬塑管的双套管。
短句来源
  相似匹配句对
     Cutting Hard Brittle Material in Plastic State
     实现塑性状态下切削非金属硬脆材料的思考
短句来源
     Discussion on Improving Bit's ROP in Hard Plastic Formation in Chuandong
     提高三牙轮钻头在川东硬塑性地层机械钻速的探讨
     hard liver;
     肝脏质地坚硬;
短句来源
     Livelihood was hard;
     民生艰难,思想混乱。
短句来源
     On Plastic Ability
     “造型能力”简论
短句来源
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  hard plastic tube
The Cornet consists of a curved hard plastic tube within which sits a soft flexible rubber tube.
      


Soil samples with different pH, CaCO_3, CEC, clay contents were taken from differentdepths of a Loessial soil. The samples were put into hard plastic tubes with diameter 4.5 cm andhight 20 cm. Water was added to 20% of the soil dry weight, and (NH_4)_2SO_4 was applied on thesurface with 0.15 g N per tube. The tubes with soil were placed at 20℃ in laboratory for 2 daysand the NH_3 volatilized was measured with Hargrove's method. The results obtained show thatthe amount of NH_3 volatilied was...

Soil samples with different pH, CaCO_3, CEC, clay contents were taken from differentdepths of a Loessial soil. The samples were put into hard plastic tubes with diameter 4.5 cm andhight 20 cm. Water was added to 20% of the soil dry weight, and (NH_4)_2SO_4 was applied on thesurface with 0.15 g N per tube. The tubes with soil were placed at 20℃ in laboratory for 2 daysand the NH_3 volatilized was measured with Hargrove's method. The results obtained show thatthe amount of NH_3 volatilied was positively correlated with either pH or CaCO_3, but negativelycorrelated with both CEC and clay contents. As any two of the pH, CaCO_3, CEC and clay con-tent correlated each other, the correlation could not interpret whether eachfactor had its own con-tribution to the volatilization or each function was a false phenominon caused by each other's cor-relation. However, path analysis showed that pH was the only direct factor causing volatilizati-on, and the function of other factors was indirect ones caused by pH.

从红油土不同深度部面中采集pH,碳酸钙,CEC,粘粒含量各不相同的土壤,置于直径4.5cm,高20cm的硬质塑料管中(每管装土500g),然后加入相当于土重的20%的水分,并表施0.15gN(N用硫酸铵),于20℃室温下2天后,以Hargroue法测定氨的挥发量。试验表明,肥料中氨的挥发数量与土壤pH,CaCO_3有显著的正相关,而与CEC,粘粒含量有显著的负相关。由于pH,CaCO_3,CEC与粘粒含量之间有着密切关系,由上述结果很难判断究竟是各个因子对氨挥发均有贡献,还是各个因子之间互相有关而造成的假象。为此,进行了通径分析。后一分析表明,造成氨挥发的直接因子是pH,其他因子的作用都是pH的间接表现。

Cathodic. protection can effectively control the electrolchemical corrosion to a tank bottom. Compared with conventional cathodic protection, there are several points worth of being discussed:1. Tank grounding. Conventionally, the materials of grounding electrodes and the tank body are different, the two kinds of metal make the original battery corroded thus aggrevating the tank corrosion. It is suggested that the grounding material be replaced by zinc or megneseoum;2. Measurement of potential distribution at...

Cathodic. protection can effectively control the electrolchemical corrosion to a tank bottom. Compared with conventional cathodic protection, there are several points worth of being discussed:1. Tank grounding. Conventionally, the materials of grounding electrodes and the tank body are different, the two kinds of metal make the original battery corroded thus aggrevating the tank corrosion. It is suggested that the grounding material be replaced by zinc or megneseoum;2. Measurement of potential distribution at the tank bottom. For new tanks, cathodic protection system should be taken into account during the design phase; And for existing tanks, a hard plastic tube with holes in the wall can be applied. The referential potential can be inserted into the tube for mobile measurement;3. High potential protection of insulated flanges. Three present efficient measures can be adopted: zinc grounding with battery for protection, diode protection and lightning arrester protection;4. Design parameters. 6-10A/m2 is suitable for current density protection considering the initial and later phases.Several suggestions are given in the paper in accordance with the situation that tank cathodic protection has not yet been put into the conpulsary practice, several suggestions are given for stable practice of the technique.

阴极保护可以有效地控制储罐罐底的电化学腐蚀,但和常规的管道阴极保护相比有几个技术问题值得探讨:①罐体接地,由于传统的接地电极材质与罐体材质不一致,两者形成了双金属腐蚀原电池,加剧了罐体腐蚀,应将接地电极的材质改为锌或镁;②罐底电位分布的测试,对于新建储罐,在设计时就应考虑阴极保护系统,对于旧罐可用一支带孔的硬塑料管,将参比电极插入管中移动测量;③绝缘法兰的高电位防护,采用当前行之有效的三种措施,即锌接地电池保护、二极管保护、避雷器保护;④设计参数,如保护电流密度,考虑到初期和后期,选择6~10mA/m~2为宜。针对我国目前还未达到强制推行储罐阴极保护技术的情况下,为了更加稳妥地推动这一技术,提出了几点建议。

The performances of Acacia mangium seedlings in 3 types of container and 9 kinds of medium were tested. The results show that there are significant difference between 3 containers on the growth of height, diameter at seedling base, weight of fresh roots and numbers of root nodule. Plastic bag is the best container for seedlings growing, soft plastic tube is the second. Hard plastic tube is the worst container for seedlings growing , but it is the best one for root development and...

The performances of Acacia mangium seedlings in 3 types of container and 9 kinds of medium were tested. The results show that there are significant difference between 3 containers on the growth of height, diameter at seedling base, weight of fresh roots and numbers of root nodule. Plastic bag is the best container for seedlings growing, soft plastic tube is the second. Hard plastic tube is the worst container for seedlings growing , but it is the best one for root development and nodule formation. Though saw dust (40%) + deep soil (58%) + phosphorus (2%) is the most suitable for nodule formation, the medium, deep soil (70%) + burning earth (28%) + phosphorus (2%), is the best for seedling raising which is the most suitable for growing and good for nodule formation. The order of seedling growth in different medium is as follows: containing burning earth > containing marly soil > containing saw dust.

马占相思采用3种容器和9种配方基质育苗试验,结果表明:3种容器育苗对苗高、地径、根鲜重和根瘤数存在显著影响,其中以塑料薄膜育苗袋育苗生长最快,舒根型软育苗器次之,舒根型硬质塑料育苗筒最慢,但根系发达,结根瘤最多;9种配方基质中以70%黄芯土+28%火烧土+2%过磷酸钙的苗木生长最好,结瘤量也多,根瘤数略次于含40%锯木糠+58%黄芯土+2%过磷酸钙基质的,苗木生长量总趋势是含火烧土基质>含泥炭土基质>含锯木糠基质。

 
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