查询词典 gastightness

The results indicated that the higher the gastightness in the stacks was,the longer the pressure decay and maintaining time of fumigant were.

以压力衰减法测定两个相似的薄膜密封包装玉米垛的气密性、采用PH3和CO2 混合熏蒸后PH3和CO2 气体浓度在粮垛内的保持情况以及对玉米象、米象和赤拟谷盗 3种害虫处理后的结果。

A series of P-T tests in field and model bin were carried out,through controlling initial pressure upper limit P and gastight degree,The results showed that gastightness not only relates to airtight degree,structure material and technological quality,but also relate to pressure upper limit,temperature and so on.

文章通过控制初始压力上限P和气密程度，进行了一系列P -T试验，对室内模拟仓和实仓进行测试，通过试验和对实验结果数据的处理分析，发现气密性不仅与环境密闭程度、结构材料及工艺质量有关，而且与测压上限及温度等环境条件有关；并且，在相同气密条件下，容器不同初始压力下的半衰期之间存在很好的线性相关性。

In addition because of their high degree of gastightness and cleanness they are suitable for use as circulators for rare gases e.g.

另外，因为高度气密和洁净，它们适合于稀有气体的循环器，或泵送防护气体。

Developed laser welding machine successfully applied in China's aerospace Ni-MH battery with high-intensity, high gastightness welding, making China the third country to master the technology.

公司研制的激光焊接机成功应用于中国航天用氢镍电池高强度、高气密性焊接，使中国成为第三个掌握该项技术的国家。

The results showed that the better gastightness the warehouse have,the longer time the PH 3 effective concentration can maintain,and the better fumigation effect can be achieved.

在半衰期为 78秒的 4 5号仓和半衰期为 5 4秒的 4 9号仓进行环流熏蒸效果对比试验，试验结果表明，气密性越好，维持PH3气体有效浓度的时间越长，熏蒸效果也越好。

Add system usually pumped into a sealed container on high vacuum, and then gastightness leak detection, leak detection to be passed, with the addition pump container Wang added, add it to reach the requirements.

加注系统通常先对密封容器抽成高真空，然后进行气密性检漏，待检漏通过后，用加注泵王容器中加注，使其迅速达到加注的要求。

DATA SYNTHESIS:① Medicinal gum, hose and other products: The medical stopper used for sealing is requested to have the flexibility, resistant to cold, water, oil and disinfectant, and pinprick can still keep the original closeness and gastightness, etc.

资料综合：①硅橡胶及聚氨酯的结构性能：硅橡胶是以高分子量的线型聚有机硅氧烷为基础，添加特定组分，加工后，制成具有一定强度和伸长率的橡胶态弹性体。

Shell products are subjected to by the technical specifications of 1.0 ~ 1.6MPa water pressure test and the 0.5 ~ 0.82MPa gastightness test, the majority of those casting shell-type is an A-type products, technical difficulty, high-tech .

壳体类产品按技术规范需承受1.0~1.6MPa的水压试验及0.5~0.82MPa的气密性试验，这些壳体类铸件大多数属A类产品，技术难度大，科技含量高。

The results showed the distribution of PH_3 was uniform,and the rate of low-concentration to high-concentration was higher than 0.83;gastightness was well during fumigation,the lowering rate of mean concentration was 4.5%/d.The mortality of st...

试验结果表明PH3浓度分布均匀，均匀度大于0.83；熏蒸期间气密性较好，平均浓度下降率为4.5%/d；熏蒸28天后散气，杀虫效果良好，粮堆内储粮害虫死亡率达到100%。

Based on the engineering practice, the sealed design of key nodes for high-level biosafety laboratories (BSL-3 and BSL-4 Laboratory) are introduced including the selection and assemblage of panel materials of building enclosure, a variety of channels through walls, and inflatable airtight doors and efficient exhaust filtration unit, which can solve the gastightness questions of building enclosure.

阐述了高等级生物安全实验室（BSL-3、BSL-4实验室）围护结构墙板材料选型、装配以及各种穿墙管道、充气密闭门和排风高效过滤单元等关键节点的密封设计，解决了围护结构的气密性问题。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。