查询词典 alternating function

It is considered that fatigue crack is early produced on drill pipes, because the vibration load of drilling tools in air drilling is more severe than in mud drilling. Fatigue cracks easily occur under alternating vibration. Because the current wellhead detecting instruments can not be used to reflect the change of pump pressure produced after drill pipe piercement timely and accurately, effective measures can not be taken in time to prevent the expansion of fatigue cracks. As a result, drill pipe fracture accidents occur.

失效分析表明，钻杆属于早期疲劳断裂，断裂主要原因是在空气钻井过程中钻具受到的震动载荷远大于钻井液钻井过程中的震动载荷，在交变的震动载荷作用下，钻具容易产生疲劳裂纹；由于现有的井口检测仪表不能精确及时反映钻杆刺穿之后产生的泵压变化，无法及时采取预防措施，疲劳裂纹不断扩展，最终导致了钻杆断裂失效。

Culm sheaths purple-brown or green-brown, usually alternating with pale and darker stripes, with sparse small brown spots or cloudy brown blotches, margins usually dark brown; auricles and oral setae absent; ligule dark purple brown, truncate, 2–3 mm, margin ciliolate; blade spreading to reflexed, purple-green with yellow margins, linear-lanceolate to linear, flat or sometimes weakly crinkled.

与更苍白并且黑的条纹或绿色棕色，通常交替的竿箨紫褐色，带有稀少小的棕色的点或者多云的棕色的大块斑点，边缘通常暗褐色；叶耳和口头的刚毛无；叶舌深紫色棕色，削去，2-3毫米，边缘具短缘毛；叶片开展到反折，紫色绿色具黄边缘，线状披针形到线形，有时身体虚弱皱曲的平或。

A phase-error corrector adjusts the phase of the oscillator signals in response to a variation in the magnitude of an alternating current component in the quadrature mixer output signal (MO2a).

相位误差校正器向应于正交混频输出信号(MO2a)中的交流分量的幅值变化来调整振荡信号的相位。

Porous alumina templates with different apertures were fabricated by changing the oxidation voltage in two-step anodic oxidation, and then Cu nanowires were synthesized in porous alumina by the alternating current electrochemical deposition method. The Cu/PAA was analyzed by SEM and XRD, the results have shown that Cu nanowires were indeed synthesized in porous alumina which had the same diameter and good structure of wire grating.

通过改变二次氧化过程中的氧化电压，制备了不同孔径的多孔Al模板；采用交流电沉积的方法，制备了含Cu阳极PAA膜。X射线衍射分析表明，阳极PAA膜上确有Cu生成；扫描电镜显示，Cu纳米线粗细均匀，具有很好的线栅结构。

Major step forward in the Czech Republic operating Products: high and low temperature test chamber, the high and low temperature humid chamber, the high and low temperature alternating humid chamber, constant damp-heat test chamber, salt spray corrosion test chamber, high temperature thermostat chamber, high temperature aging test chamber, light-resistant climate test chamber, rain test chamber, mold chamber, vibration, and various large-scale testing laboratory, oven and so on.

迈捷经营的主要产品：高低温试验箱、高低温湿热试验箱、高低温交变湿热试验箱、恒定湿热试验箱、盐雾腐蚀试验箱、高温恒温试验箱、高温老化试验箱、光照耐气候试验箱、淋雨试验箱、霉菌试验箱、振动、测试仪及各类大型试验室、烘箱等。

The current flag has 13 red and white alternating stripes representing the original 13 states and 50 stars each star represents one of the states of the Union on a blue background.

目前美国的国旗上有13条红白相间的横条，代表美国成立之初时的13个州；一块蓝色的底色上有着50颗星，每一颗星代表联盟的一个州。

Cover page, table of contents, 5+ pages of alternating layouts for my written/graphic content.

封面，目录，5 +的交替我的书面/图形内容，布局的网页。

Alley cropping; strip cropping: Growing two or more crops in alternating strips or blocks on the same piece of land at the same time.

条植法；条播法：在同一块田里按条或块同时种植两种或两种以上的作物。

Alley cropping; strip cropping: Growing two or more crops in alternating strip s or blocks on the same piece of land at the same time.

条植法；条播法：在同一块田里按条或块同时种植两种或两种以上的作物。

Alley cropping; strip cropping Growing two or more crops in alternating strips or blocks on the same piece of land at the same time.

条植法；条播法在同一块田里按条或块同时种植两种或两种以上的作物。调拨成本，已分摊成本

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。