查询词典 under-employment

My friends who got under the bed and under desks were crushed to death ...

我的朋友们，那些躲在床下，桌子下的人都死了。

Custodianship Declaration from your parent and from the custodian in Canada if you are under 18 years of age (for schools in Alberta, Manitoba, Ontario, Prince Edward Island, Québec and Saskatchewan) or under 19 years of age (for schools in British Columbia, New Brunswick, Newfoundland, Nova Scotia, North West Territories, Nunavut and the Yukon).

下列申请人需要来自于父母及加拿大监护人的监护声明：18岁以下且就读学校位于阿尔伯塔省、曼尼托巴省、安大略省、爱德华王子岛省、魁北克省或萨斯喀彻温省；或19岁以下且就读学校位于不列颠哥伦比亚省、纽布朗斯维克省、纽芬兰省、新斯科舍省、西北领地、努纳武特地区或育空省。

One custodianship declaration if applicant is under 18 years of age and intends to study in Alberta, Manitoba, Ontario, Prince Edward Island, Quebec and Saskatchewan or under 19 and intends to study in British Columbia, New Brunswick, Newfoundland, Nova Scotia, Northwest Territories, Nunavut and the Yukon.

若申请人属于以下任一种情况须递交一份监护人声明：申请人未满十八周岁并计划在阿尔伯塔省、曼尼托巴省、安大略省、爱德华王子岛省、魁北克省及萨斯喀彻温省学习；或未满十九周岁并计划在卑诗省、纽宾士域省、纽芬兰省、新斯科舍省、西北行政区、努勒维特地区及育空省学习

Urea-cyanamide method: With different catalyst, under the condition of some temperature and time, urea and ammonia manufacture cyanamide under normal pressure.

尿素-氰胺法：使用改性分子筛做催化剂，在一定温度和停留时间等反应条件下，在氨气气氛中，使尿素在常压下脱水一步制备氰胺。

Under the background of international internet era, China"s TV medium is facing with the new communication environments, China"s primary communication environments, including political, market, cultural and technique environments, appear new characteristics under the impact of cybernation.

在全球迈向"网络时代"的背景下，中国国内的电视媒体面临着新的传播环境，原有的传播环境包括政治环境、市场环境、文化环境和技术环境在网络化的冲击下逐渐呈现出新的特点；面对网络所带来的机遇和挑战，中国电视媒体正积极地寻求与网络相融互补，谋求更广阔的发展天地：一方面通过组建自己的媒体网站，实现信息的网络化传播，另一方面在积极的推进电视媒体的数字化、网络化进程，适应未来全球电视业的激烈竞争；本文对中国电视媒体初步实现网络传播的现状进行了总结，并就传播过程中呈现的问题、原因和应对的策略，提出了一些自己的看法，对未来可能呈现的发展趋势作出了预测和判断。

Methods Clinical data of 51 patients with PRF were retrospectively analyzed. Among the 51 cases, 12 were treated with the ureteroscopic holmium: YAG laser lithotripsy and stenting after it, 29 with retrograde intubation under cystoscope, 10 with retrograde intubation under cystoscope and percutaneous nephrostomy.

对51例不同梗阻原因致肾后性急性肾功能衰竭的患者，采用急诊输尿管镜下钬激光碎石并置管引流（12例）、膀胱镜下逆行双J管插管（29例）、膀胱镜下逆行双J管插管联合经皮肾穿刺造瘘引流（10例）解除梗阻，回顾性分析其治疗效果。

Under pressure from government officials in the village, a dairy farmer tried to shush his angry wife and shouted out,"I believe the Communist Party, and under the excellent leadership of the Communist Party I have a right to refuse your interview."

在村干部的压力下，壹个奶农试图让其愤怒的妻子不做声，"我相信中国共产党。在它的英明领导下，我有权拒绝妳们的采访。"

They communicate the laity everywhere not only under the form of bread but also under that of wine, and they stubbornly assert that they should communicate even after a meal, or else without the need of a fast, contrary to the church's custom which has been laudably and sensibly approved, from the church's head downwards, but which they damnably try to repudiate as sacrilegious.

他们沟通俗人无处不在，不仅下形成的面包，而且根据酒的，他们顽固地认为他们应沟通后，即使是吃一顿饭，否则，如果没有需要的是一个快速，违背了教会的习俗已laudably理智批准，由教会的头部向下，但它们damnably试图推翻，因为亵渎。

The effect of tribology factors on bearing vibration is studied experimentally. AR model and WPT are used to processing the normal arid abnormal signals. The results are as follows:1. The vibration of ball bearings is caused by the tribology action of contact pairs of ball and ring races and has the essential of tribo-dynamics. Any factors affecting the tribology characteristics of contact pairs will affect vibration and noise of bearings consequently.2. Vibration characteristics of bearing keep almostly unchanged with the increasing of axial load expecting the increasing of nature frequencies. When radial load increasing with axial load unchanged, nature frequencies keep unchanged but some new vibration peaks appears in the spectrum.3. Vibration amplitudes are damped and nature frequency are enhanced with sufficient lubrication. Vibration and noise of bearings increase obviously and roar can happen and the contact surfaces scratch slightly under insufficient and unclean lubrication state. Bearing will be disabled in a few minutes without any lubrication.4. Bearing vibration is unstable under low speed. With the speed increasing, the vibration become stable and natural frequencies increase slightly but the amplitudes increase apparently.5. Bearing vibration can be excited only by some harmonics ofwaviness without lubrication and by all harmonics with lubrication based on the theoretical analysis.6. The nature frequencies of ball bearings decrease with the increasing sizes. When international clearance increasing, nature frequencies decrease in radial and increase in axial and angular and the amplitudes increase in radial and decrease in axial and angular. When the number of balls increasing, nature frequencies increase and amplitudes decrease. When the pitch diameter increasing, axial nature frequency increase and others nearly keep no change. When outer race groove curvature radius increasing, nature frequencies increase in radial and decrease in axial and angular and amplitudes keep no change in radial and increase in axial and angular. When inner race groove curvature radius increasing, nature frequencies decrease and amplitudes increase.7. The distortion in amplitude and frequency components of bearing vibration signals picked up by the present probe measurement method is founded and right conclusions cannot be achieved by the signals. When accelerometer is rigidly screwed with steel stud onto a flat outer surface of a ball bearing, vibration signal can be got without distortion and the reliability of research on bearing vibration is assured.8. AR model is suitable for large samples of bearing vibration signals, square root of length of samples can be used as the upper limitation of order determination and the FPE order selection criterion is effective. Many advantages of AR spectrum are founded over the classical based on FFT.9. Time-Frequency analysis is necessary for abnormal noise of ball bearings. WPT overcomes the principle shortcomings of STFT and proved to be a best tool to process the abnormal signals.

理论分析和试验研究表明： 1球轴承振动是钢球—滚道接触副中的各种摩擦学作用引起的，具有摩擦动力学的本质，任何对接触副的摩擦学特性有影响的因素都将对球轴承的振动和噪声特性产生影响； 2中心轴向载荷作用下，载荷增大使球轴承的固有振动频率升高，载荷越大同样的载荷增幅引起的频率升幅减小，足够大的中心轴向载荷作用下载荷的变化对球轴承振动的频率特性不会产生明显的影响； 3轴向和径向联合载荷作用下，径向载荷不大时球轴承振动的固有频率基本不变，但是可能引起变刚度激励的非线性振动，出现新的频峰，过大的径向载荷将使部分钢球脱离接触，使球轴承的振动和噪声呈现不稳定状态； 4润滑对球轴承的振动和噪声特性有重要的影响，良好的润滑对振动有明显的抑制作用，润滑不充分时，振动和噪声的水平会有明显增高，一定条件下还会激发接触副中的谐振，发出啸声，造成接触表面的伤害，无润滑干接触时，短时的运转就会损伤接触副表面，使振动和噪声迅速增大，并随时可能引发严重的磨损和卡滞失效；接触副润滑良好时，油膜的"刚化效应"使球轴承振动的固有频率有所提高，润滑剂中含有弥散性污浊时，振动的幅度总体升高，但弥散性污浊不会改变球轴承振动的频率特性；浙江大学博士学位论文：球轴承振动的研究 5低速时，球轴承振动的基本特征呈现不稳定状态，随着转速的提高，球轴承振动的频率特性趋于稳定，固有频率频峰升高； 6理论分析表明，干接触时钢球和滚道表面波纹度的某些谐波分量能激励球轴承的振动，振动的幅值与谐波幅值成正比，实际球轴承中钢球的分布不可能完全均匀，波纹度的激励作用会随时发生；润滑接触的分析表明，波纹度的任意谐波分量均能激励球轴承的振动； 7球轴承的几何和结构参数分析表明，球轴承尺寸越大，径向、轴向和角振动的固有频率越低；钢球中心圆直径增大，球轴承的径向和轴向振动的固有频率基本不变，角振动的固有频率有所上升，振动的幅频特性基本不变；径向游隙加大使球轴承的径向振动固有频率降低，轴向和角振动的固有频率有所升高，径向振动幅频特性的幅值升高，而轴向和角向降低；钢球的数量增多使球轴承振动的固有频率上升，幅频特性的幅值下降，径向振动的幅值下降最为明显；外圈沟曲率半径系数增大使球轴承径向振动的固有频率升高，轴向和角振动的固有频率降低，径向幅频特性基本不变，轴向和角向幅频特性幅值升高；内圈沟曲率半径系数增大使径向、轴向和角振动固有频率均下降，振动幅频特性的幅值均有升高； 8试验对比表明，传感器采用探针式安装时，由于探针接触副接触特性的影响，钡(量得到的球轴承振动信号有失真，采用专门设计和制作的试验球轴承，以固定式安装加速度计，首次测量得到了球轴承振动的真实信号，通过对振动信号的分析，验证了球轴承振动的理论模型； 9)基于时间序列分析的AR模型适用于大样本球轴承振动信号的分析，以样本长度的均方根值作定阶上界，FPE做判阶准则，给出的AR谱光滑，频率分辨率高，是球轴承振动分析的简便而可靠的手段； 10以时频域分析的小波包变换分析球轴承异音信号能够比较好地定位和聚焦异音发生的时间，时间间隔，频率范围，同样是球轴承振动分析的可靠的手段，可用作球轴承故障诊断技术。

Fabrizio, swimming for his life, gets swirled under a davit. The ropes and pulleys tangle around him as the davit goes under the water. And he is dragged down.

法布里奥游泳求生时给吊艇架的链条缠住，吊艇架往下沉时绳索和滑轮车纠结，拽着他往下沉

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。