查询词典 fourth-rate

For the plane wave of laser without pulse shape, we derive the express of electron trajectory by the relative Lorentz and energy equations. Note that the orbit of electron becomes a "fat-8" in the average rest frame. For the plane wave of Gaussian laser, we may know that, through relative Hamilton-Jacobi equation, electrons are accelerated in the front of pulse and decelerated backward. Whereas for the non-plane wave of Gaussian laser, we solve the Lorentz and energy equations by fourth order Runge-Kutta method.

对于无脉冲形状的激光平面波是从考虑了相对论效应的Lorentz方程和能量方程出发，得到了电子的运动轨迹方程表达式，在纵向平均速度参照系下该电子的轨迹呈现"8"字形；对于高斯型单色激光平面波是从相对论Hamilton-Jacobi方程出发，得到激光平面波在脉冲前沿加速电子而脉冲后沿减速电子，电子能量增益为零；而对于高斯型单色激光非平面波是从拉格朗日运动方程和能量方程出发，通过四阶Runge-Kutta法数值求解，得到电子在纵向有质动力、横向电场作用下加速电子，最后在强大的横向有质动力作用下从脉冲侧面散射出去，可以获得很大能量增益本文得到了相应的电子瞬时动量解析表达式。

Something's wrong with the gear lever. It won't leave down in fourth .

档杆出了毛病，无法使它保持在四档上。

Fourth, the method of real-time data disposal and the generalized distributing distance rule and algorithm of samples are presented by which few can be selected from plenty of measuring data.

提出过程数据预处理办法及样本点广义距离均匀分布规则和算法，解决了从海量过程测量数据中撷取少量样本数据的问题。

The fourth chapter defines the term of generalship, which is the military promotion standard when the complexity of war increased during Chun-Chiu Period.

第四章论及将道，即春秋时代各国在面对日趋复杂的战争时，其对於军队主帅的任命标准为何。

Fourth, we eat every day of genetically modified foods, but you did not know it.

第四，我们每天都在吃转基因的食品，只不过你以前不知道罢了。

The fourth is to develop the geographic information industry to better contribute to economic and social development.

四是大力发展地理信息产业，更好地为经济社会发展做贡献。

Fourth, changes in the geomagnetic said.

四、地磁变化说。

The fourth stage replies to cure a stage for reexamination and includes the check germ spot control circumstance once every half year, the hygiene preaches religion and claps a slice of check to draw up a treatment plan further.

第四阶段为复查复治阶段，每半年一次，包括检查菌斑控制情况，卫生宣教，拍片检查，以进一步拟订治疗计划。

On April 7, 2008, Gifford started co-hosting the fourth hour of NBC 's Today Show with Hoda Kotb .

4月7日， 2008年，吉福德开始共同主办的第四届小时的全国广播公司的今天，显示与何寇柏。

First,we have discovered stone artefacts in caves, which have similar features to that were broadly scattered in laterite terraces in Bose basin(0.8 Ma B.P),next study on deposits and fauna will be hopefully contributed to document paleoenvironmental background of early human;Second,early human fossils,Gigantopithecus and mammalian fossils unearthed in Mohui cave provide new evidence of early human origin; Third,after our scientific excavation in Fengshudao site in Bose basin, we have found five pieces of bi-face LCT with 10 tektites and nearly 100 stone artefacts form original laterite deposit.This important discovery is very answerable to international question about stratigraphic suspect of LCT; Fourth, abounding mammallian fossils with human fossils and remains from early Pleistocene to Holocene have been uncovered after systematically excavation in marginal cave of Bose basin.These discoveries are significant to the study on human evolution and establishment of sequence of Quarternary biological-stratigraphic in southern China.

首先，我们在百色盆地边缘洞穴堆积物中，发现与百色盆地内网纹红土阶地（0.8 Ma ）类型相似的石制品，通过对堆积物及其包含动物群的研究有望对解决早期人类生存环境背景作出贡献；其次，在么会洞发现了早更新世早期大约1.8 Ma 的人类化石、巨猿化石和丰富的哺乳动物化石，为解决早期人类起源提供了新的证据；再次，在百色盆地枫树岛旧石器时代遗址，通过科学发掘，从原生地层中发现五件与玻璃陨石共生的手斧，以及近百件其它类型的石制品，解决了目前国际学术界普遍关注的百色手斧的层位问题，为进一步确定百色旧石器的时代奠定了基础；另外，通过对百色盆地边缘洞穴的系统发掘，发现了自早更新世早期至全新世以来不同时代的大量哺乳动物化石，同时还发现中更新世晚期--晚更新世早期和全新世的人类化石和石制品，对研究人类演化、建立华南第四纪生物地层序列具有重要的科学意义。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。