查询词典 spring

According to by the time series estimate power spectral density\'s periodogram law principle,the research adopts five level of orbital power spectra which US Federal railway Administrative bureau FRA proposed;then,through the Fourier inverse transformation,the orbital not smooth time domain samples are obtained, which determine the track irregularity peak-to-peak value and the corresponding wave length; on the basis of the research,the influence of the wheel track dynamic contact force are considered.Based on the orbital roadbed coefficient\'s definition,computation model is established to solve the roadbed equispaced spring constant,and the roadbed uniform spring stiffness is obtained by using the numerical simulation method.Finally,based on the Matlab procedure platform,the computational procedure is established,and the load time interval caused by the moving train acts on the roadbed is obtained.

根据由时间序列估计功率谱密度的周期图法原理，采用美国联邦铁路管理局FRA提出的五级轨道功率谱，通过Fourier逆变换得到轨道不平顺的时域样本，确定了轨道不平顺的幅值及对应的波长，以此为基础考虑轮轨动态接触力的影响；基于轨道路基系数的定义建立了求解路基均布弹簧刚度的计算模型，采用数值模拟得到了路基均布弹簧刚度；最后，基于Matlab程序平台编制了计算程序，得到了运行列车作用到路基上的荷载时程。

An air spring port is provided in the housing for fluidly connecting to an air spring.

在阀体上还有一个空气弹簧口(39)，用于与空气弹簧(22)流体连通。

Breed can be used sow law, cuttage law and Qiegenfa to breed, sow ℃ of 20-25 of gemmiparous comfortable Wen Wei to control, spring, summer, Qiu Jun but, left and right sides of a month after sowing is gemmiparous, sow although the law is OK short time acquires more plant amount, but from the time that sows to blossom longer, still be much commonly so with cuttage breed is given priority to, cuttage with spring, summer two Ji Wei is comfortable period, insert with terminal bud for beautiful, cuttage sends a root extremely easily, cuttage hind can become a young plant about 4 weeks.

繁殖可利用播种法。扦插法及切根法繁殖，播种发芽适温为20-25℃左右，春。夏。秋均可，播种后约1个月左右发芽，播种法虽然可以短时间获得较多的植株数量，但是从播种到开花的时间较长，所以一般还是多以扦插繁殖为主，扦插以春。夏两季为适期，以顶芽插为佳，扦插极轻易发根，扦插后约4周即可成苗。

From 1980 to the end of October in 1999,14 earthquakes with M\-S≥5 occurred within 300 km from the No.10 spring in Urumqi.Before 13 of them,the hydrochemical parameters of the spring showed anomalies.

从 198 0年至 1999年 10月底，距 10号泉 30 0 km范围内共发生 5级以上地震 14次，其中在13次地震前，该泉水化学项目有前兆异常反应。

With ADAMS,a kind of dynamics analysis software,a dynamics model of vehicle with leaf spring and another with hydropneumatic spring were set up.

利用动力学分析软件ADAMS，建立了钢板弹簧车辆和油气弹簧车辆的动力学模型，开展了整车在随机路面上的平顺性仿真，分析了两种悬架对车辆平顺性的影响，并通过仿真数据与试验数据的对比，验证了动力学模型的正确性

Stiff mathematical models of hydropneumatic spring s show that some relevant factors such as the volume of gas accumulator and the temperature of operational environment markedly affect the stiffness of hydropneumatic spring s.

对油气弹簧刚度特性数学模型的分析显示，储气室总容积、环境温度等对油气弹簧的刚度特性有明显影响。

The planting width of spring corn and spring soybean interplanting and the compound group constitution were perfected by factor efficiency analysis and computer simulation perfecting in the base of models.

根据建立的模型，进行了因子效应分析，并结合计算机模拟寻优，对春玉米间作春大豆的畦幅及其复合群体结构进行了优化。

Two kinds of springs,coarse and liny,are available for the HP-100,Use the appropriate spring to match torque strength.Ablack spring has already attached with the Fidaptor.

HP—100共有两种弹簧，粗弹簧和细弹簧，使用合适的弹簧以匹配扭力的强度，精度调节器本身配有粗弹簧。

The orignial siu mai is not like the ordinary one, and I believe that version should be an old version, also for the spring roll is not like the ordinally one, but the spring roll provided is very very limited...

早上九时正，人身处在老酒楼&得如&，边喝着浓如墨汁的普洱边在叹报纸，口里则咬着一粒只有老式茶楼才遇到的鱼翅饺，实是极之悠闲之能事也。。。。

Total 18 crenarchaeal sequences were obtained and divided into 12 OTUs. The average similarities between the clone sequences from Wuming hot spring and Rebao hot spring and their closest sequences deposited in GenBank is 92.56% and 93%, respec-tively.

一共得到 18 个泉古菌克隆序列，可分为 12 个OTUs，两温泉的克隆序列与已知GenBank上关系最近序列的平均相似性较低，无名泉为 92.56%，热爆区为 93%。

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％。