查询词典 mechanical pencil

According to the problem of outlet leakage of propane on the propane pump mechanical seal in the olefine factory of Qilu petro-chemical company, the new-type assembling non-contacting mechanical seal for propane pump was developed firstly on the basis of the principle of non-contacting of mechanical seal .

针对齐鲁石化公司烯烃厂丙烷泵机械密封频繁出现汽喷现象、密封端面泄漏严重的问题，根据非接触式机械密封原理，研制开发出了丙烷泵用新型非接触式机械密封。

Vulcanization and mechanical properties of the filled ACM were studied by rheometric measurement, gel fraction analysis,mechanical property tests and dynamic mechanical thermal analysis.

用硫化仪分析、凝胶含量测定、机械性能测试和动态力学性能分析研究了交联单体的种类和用量对橡胶的硫化和性能的影响。

Vulcani- zation and mechanical properties of the filled ACM were studied by rheometric measurement, gel fraction analysis, mechanical property tests and dynamic mechanical thermal analysis.

结果表明，在相同的配方条件下，同化学法制备的聚合物相比，辐射法制备的聚合物的酸值较低，分子量较高，分子量多分散系数较小。

For different silvicultural measures, the mechanical properties of Pinus sylvestris plantations were measured and analyzed. The results showed that the effect of silvicultural measures on many mechanical properties of Pinus sylvestris Plantations were not significant..In order to increase the mechanical properties of wood, growth-promoting and then get the better structure building lumber and glued lamination board, the stands on south slope or at the down of slope, and with density of 1.5m×1.0m, properly thinning could be selected. Results of this study can provide a theoretical base and good guidance for oriented breeding of Pinus sylvestris plantations.

摘 要：对不同培育措施的人工林樟子松木材力学指标进行测试和分析，结果表明：不同的培育措施（初植密度、间伐强度、坡向、坡位）对樟子松人工林木材的绝大多数力学强度指标有显著的影响，可选择阳坡、坡下、1.5m×1.0m、轻度间伐林分进行定向培育，来提高木材力学强度性能，从而加快林木生长，培育高产、优质的结构、建筑用材及胶合板材林。

The present invention provides a container comprising: a semi-enclosed container body including a tubular structure having two open ends and a bottom panel enclosing one end of the container body, the other end of the tubular structure opposite from the bottom panel forming a substantially continuous outwardly-extending peripheral flange; a lid for selectively converting the semi-enclosed container to a closed container; and a closure means for sealing the lid to the container body, the closure means comprising a mechanical interlocking seal and a slideable mechanical closure for sealing the mechanical interlocking seal.

本发明提供了一种容器(10)，它包括：半封闭的容器主体，包括具有两个开口端和一底板的空心结构，该底板封闭容器主体的一端，与底板相对的空心结构的另一端形成大致连续的向外延伸的周边突缘(25)；一个盖(40)，用于选择性地把半封闭容器转变成封闭的容器；和封闭装置(30)，用于把盖密封到容器主体上，该封闭装置包括机械互锁密封元件、和用于对机械互锁密封元件进行密封的可滑动的机械封闭元件(36)。

In carpet tufting process, the mechanical properties of tuft needles restrict the raising of the spindle's speed and also influence the vibrational property of the entire mechanical system of a tufting machine. However, the kinetic characteristic of the needles greatly depends on the mechanical design of the driving mechanism.

地毯簇绒过程中簇绒针的力学和运动性能制约了主轴转速的提高，影响着整个机械系统的振动特性，而簇绒针的运动性能直接取决于传动机构的设计。

This text aims at the problems in mechanical principle course , and puts forward that it must starts off from desalinating the specialty and strengthening the foundation, and confirms mechanical principle overall situation position and action in person of ability cultivates and breaks the fetter of teaching program , and quickens the mechanical principle course reformation

就《机械原理》课程存在问题，提出必须从淡化专业，加强基础出发，确定《机械原理》课程在人才培养全局中的地位和作用，以打破教学大纲束缚，加快机械原理课程改革。

After dialyzing for 10～20 min, SNP at a concentration of 1 μmol/L increased the induced responses to innocuous mechanical stimulation and decreased those to noxoius mechanical stimulation. The induced responses to both innocuous and noxious mechanical stimulations were all decreased after dialyzing the same dose of SNP for 20～30 min. The decrease was shown within 7～15 min dialysis when SNP was used at a concentration of 20 μmol/L.

脊髓深层神经元透析1 μmol/L SNP， 10～20 min后，非伤害性机械刺激诱发的反应增强，伤害性机械刺激诱发的反应减弱；透析20～30 min后，伤害性和非伤害性机械刺激诱发的反应均减弱；透析20 μmol/L SNP 7～15 min内伤害性和非伤害性机械刺激诱发的反应均降低。

The misdiagnosis to mechanical trouble comes from misjudging mechanical states, inaccurate diagnosis data, unreliable data, incorrect diagnosis reasoning, etc. The information properties of mechanical state play an important role in diagnosis.

对机械状态的误诊断是对机械状态的一种歪曲反映，误诊断原因是多方面的，包括诊断数据的不准确性、诊断依据的不可靠性、诊断推理的不合理性等。

PAA/PVA IPN hydrogels were prepared by a sequential method by which acrylic acid firstly. polymerizes and cross-links in PVA/water solution with UV irradiation,then PVA physical cross-linked hydrogels are formed in cross-linked PAA networksby freezing-thawing. The orthogonal test design method was used to optimize theexperimental conditions based on the mechanical and swelling properties of thehydrogels. The effect of the PAA and crosslinking agent contents on the microscopicmorphology of the PAA/PVA IPN xerogel was investigated by transmission electronmicroscopy, and on the mechanical properties of the hydogels was studied bymeasurements of mechanical properties.

针对水凝胶强度、生物相容性和刺激响应性的需要，选择了以PVA和PAA为复合水凝胶的基本分子结构；采用顺序IPN方法制备PAA／PVA IPN水凝胶，即将单体丙烯酸与PVA溶液共混，AA经紫外光辐射聚合交联在PVA溶液中形成PAA化学交联网络，再经冰冻—解冻循环过程在PAA网络内形成PVA物理交联网络。

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？