封闭的

Therefore, the covering-domain method can be adopted to calculate the radiated sound field from the complex-shaped multilayer elastic/nonelastic closed cavity.

从而可应用覆盖域的思想和方法计算复杂形状双层弹性/粘弹性封闭腔体或内层填有吸声材料的双层封闭腔体在外力作用下的辐射声场。

Tolerance analysis aims to explore the effection of divided link on sum link, namely how to ascertain the assembled sum link"s tolerance if knowing all divided link"s dimension, tolerance and distribution parameter.

公差分析研究组成环对封闭环的影响，即已知各组成环的尺寸、公差及分布参数，确定最终装配后的封闭环公差。

The results provide important molecular data for building detecting methods and keeping genetic stability in KM outbred mice.

对封闭群小鼠检测方法的建立及保持封闭群小鼠的遗传稳定性提供了重要的分子数据。

They are most abundant in quartz of pegmatitic leucosomes and granitic rocks, and represent the fluid appearing in their cooling stage. The DL(H2O) of such fluid is 0.93～0.96g/cm3 corresponding to P≈0.6GPa which is compatible with condition when the rapid decompression in this region was ended. 3 CO2-H2O two or three phases inclusions. They are the most widespread, and more frequently in clusters and in intragranular tails in quartz. The relative content of CO2+CH4 and H2O is considerably variable. They are also characterized with lower density (0.6～0.8g/cm3) and low pressure about 0.3～0.4GPa, and may be originated by mixture of carbonic liquid from breaking of most inclusions of peak stage and aqueous liquid of magmatic source. After entrapment, the further decrease of temperature to lower than 330℃ made such fluid separated to two or three phases.

主要集中于伟晶质脉体和花岗岩中，是这期岩浆冷凝过程析出的流体相当时就被封闭所成，密度为0.93～0.96g/cm3，相应压力约0.6GPa，这与峰期后迅速减压过程结束时的条件相符。3CO2-H2O两相和多相包体，分布最广，成簇状和拖尾状包体群，碳质和H2O相对含量很不均匀，整体密度相对最低，一般为0.6～0.8g/cm3，相应压力为0.3～0.4GPa，它们可能是大幅度减压过程中第一类包体大量爆裂析出的碳质流体与第二类H2O溶液流体在各处以不同比例混溶所成，它们被封闭后在降温至330℃以下时分裂成两相或三相包体。

A part of the volume of siol air is easily surrounded by water flow and entrapped in the pores of soil in the infiltration progress.

非饱和土体中的部分气体极容易在入渗过程中被封闭在孔隙或裂隙中，形成互不连通的与外界隔绝的封闭气泡。

To inactivation was approximately 900 and 9 times higher for occluded than for unoccluded spores subjected to moist and dry heat, respectively, at 121 C.

封闭孢子对121 C的湿热和干热灭活的耐受性大约是未封闭孢子的900和9倍。

Resistance of Bacillus subtilis var. niger Spores Occluded in Water-insoluble Crystals to Three Sterilization AgentsJOHN E. DOYLE AND ROBERT R. ERNSTResearch Laboratory, Castle Company, Rochester, New York 14623The resistance to destruction of spores of Bacillus subtilis var. niger occluded in crystals of calcium carbonate and exposed to ethylene oxide and moist and dry heat was determined and compared with the destruction of unoccluded spores.

检测了封闭在碳酸钙晶体中的枯草杆菌黑色变种芽孢暴露于环氧乙烷、湿热和干热中的耐受性，并与未封闭孢子的破坏相比。

According to the parameters of the pressure,the sealing abilities of the cap rocks could be divided into six grades,and the complex grading evaluation criteria of gas cap rock sealing ability that is suitable for China is established.

利用以突破压力为主的相关参数，将盖层封闭性能划分为6个等级，建立了适合我国特点的天然气封盖层封闭能力的综合分级评价标准。

Referring to regular cuboids, two different performance functions are presented for irregular enclosures in this paper. The optimum voltages applied on PZT patches for active noise control are obtained by minimizing two performance functions.

参考长方体封闭空间的情况，本文在不规则封闭空间的有源消声中提出了两种控制目标函数，通过使控制目标函数最小化得到了有源消声控制电压的最优值。

In this part, the set of CODONs is extended so that both open and closed curves containing straight lines and cusps can be completely represented.

该部分研究主要将传统的基于封闭光滑轮廓的CODON编码推广至任意非封闭非光滑曲线，使图像的CODON编码能更加完备地表征图像轮廓。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。