大约

The moon has a diameter of about 30 arc minutes, so the Galilean telescope only reveals approximately one-fourth of the moon's surface at one time.

月球有大约直径30弧分，所以伽利略望远镜不仅揭示大约有一次在月球表面的四分之一。

Original height 146.5 meters, because the year long time makes decent, the peak flakes 10 meters, present height 136.5 meters; Foundation each length of side more than 230 rice, triangle surface ascent 52 degrees, tower floor space 52,900 square meters; The tower body builds by 2,300,000 stones, each stone average weight 2.5 tons, some amount to several dozens tons again; Some scholars estimated, if ships pyramid's stone material with the train, must use 600,000 freight cars approximately; If chisels garrulously these stones, the shop becomes a foot wide path, may circle an Earth week approximately.

原高146.5米，因年久风化，顶端剥落10米，现高136.5米；底座每边长230多米，三角面斜度52度，塔底面积5.29万平方米；塔身由230万块石头砌成，每块石头平均重2.5吨，有的重达几十吨；有学者估计，如果用火车装运金字塔的石料，大约要用60万节车皮；如果把这些石头凿碎，铺成一条一尺宽的道路，大约可以绕地球一周。

It occurred about 1420 BC, since records exist of "Habiru" invasions of Canaan forty years later - this theory fits well the modern idea that the historical persona of Moses was the early 15th century BC Crown Prince of Egypt called Ramose, who also disappeared from Egyptian records around the time of Queen Hatshepsut's death

由于历史上是记载着四十年以后是存在过迦南人对"哈比鲁"人的入侵，因此它是大约发生在公元前1420年——这种理论迎合现在那种认为摩西是公元前十五世纪早期的埃及王储拉蒙斯的想法，也大约在女法老哈特谢普苏特去世的时候从埃及的历史记载中消失了。

Diviner was commanded to observe the impact site on eight successive orbits, and obtained a series of thermal maps before and after the impact at approximately two hour intervals at an angle of approximately 48 degrees off nadir.

预言家的任务是经过连续八次变轨观测撞击坑，并且大约每两小时为间隔，从大约48度的天底倾角位置获取撞击前和撞击后整个系列的热成像地图。

The Pleiades are approximately 440 light-years away and the Hyades are about one-third that distance: 150 light-years.

昴星团大约有440光年远，而毕星团则大约是此距离的三分之一：150光年。

For example, Paris Market carrots are about five centimeters around. Imperator carrots are thin and about twenty-five centimeters long. And Belgian White carrots are, as their name suggests, white.

巴黎市场上的胡萝卜身形环径大约 5 厘米，将军胡萝卜的瘦小，长大约 25 厘米长，而比利时的胡萝卜正如其名，是白色的。

Obviously, the optimization management in middle-sized or small cities of China is very necessary. The basic characteristics of municipal solid waste generated in middle-sized or small cities of China are put forward in the paper. The total amount of municipal solid waste generated in middle-sized or small cities is significantly less than that in large cities. The amount of garbage is about 1 kg per capita and year. In the garbage, inorganic material is more than organic material, the combustible less than incombustible and the amount of uncompostable garbage more than the amount of garbage that can be disposed for composting. The value of heat of garbage is about 800 kal/kg.

通过总结，我国中小城市生活垃圾的基本特点为：各城市的生活垃圾产生量相对较小，人均生活垃圾产生量大约在1kg/d左右；垃圾组分中以煤渣、灰土为主的无机成分含量过高，可回收物质成分含量很低，不可燃成分多于可燃成分，不可堆腐成分多于可堆腐成分，垃圾热值大约在800kal/kg左右；并且在我国，南方城市与北方城市，经济发达城市与欠发达城市之间的生活垃圾产生量与组成也存在着明显的地区差异。

Both of the ESD were proportional to kVp 2.2 to kVp 2.5 and were linear proportion to mAs. Inverse square law exists in the relationship of focus-film distance, FFD, and ESD. The impacts of field size and patient thickness to ESD are negligible. Optimized operating condition is chosen to improve the diagnosis rate and to reduce the patient dose. The ESD, 0.12±0.06 mGy, performing the optimized operating condition of chest x-ray examinations, is less than both values of reference doses recommended by NRPB and IAEA.

研究结果发现，入射表面剂量随操作条件而变，以相同的条件照射，三相位X光机所造成表面剂量大约是单相位X光机的1.9倍；入射表面剂量与kVp的2.2至2.5次方成比例，与mAs约成线性正比，与焦斑至底片距离的关系大约符合平方反比定律；照野面积及身体厚度虽会影响表面剂量的大小，但其程度远低於kVp及mAs的影响。

Leaf blade abaxially with tufts of hairs in vein axils; involucre bracts ca. 5 × 3 mm; hypanthium ca.

叶片背面具1束毛在脉腋；大约5×3毫米的总苞苞；大约6毫米的托杯；花瓣顶部全缘的微缺的或很少。

Currently, there are around 16,500 Jesuit Priests worldwide, and about 3,000 in the United States.

目前，有大约16500耶稣会神父世界范围内，大约有3000名在美国。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。