平均地

According to the strata about the trace elements in coal of China ,the different background value of trace elements in different parts of China were d rew out.

由于分析样品分布不均和采用的测试方法各不相同，本文的数据还不能准确地代表中国煤中微量元素的平均丰度值。

The experimental results indicated that,under the windward and leeward conditions,the cooling effect of crushed rock revetments with all these four grain-diameters was good and could effectively reduce the temperatures of the underlying soil layers;furthermore,the mean pe.

结果表明：迎风与背风两种条件下，4种粒径块、碎石护坡均具有较好的降温效果，均可在第2个试验周期将其下部土坡表面平均温度迅速降至0℃以下，有效地对其下部土体进行降温。

According to the rock beaking theories, the percussion rotary drilling technique is one of the most effective ways to drill hard rock.

冲击回转钻进技术是当前解决硬岩钻进难题最有效的方法之一，将液动冲击回转钻进技术成功地推广应用于油气田勘探钻井中，预期可使硬岩平均钻进效率提高30％～50％，成本下降15％～20％。

Pulse compression is one of the most important systems in modern radars.

脉冲压缩是现代雷达的一种重要体制，它有效地解决了雷达距离分辨力与平均功率之间的矛盾，并广泛应用于现代雷达中。

Now, TH-ASSS has realized ASM1 and 1-D SST Model and reserved good interface for other models. This paper focuses on theory and method of model application in practice. It adopt day-period curve to simulate the variation of influent, pollutant distrubution's normal status and average-HRT to simulate the influence of hydraulic delay in practical system.

本研究重点分析模拟系统与实际系统结合的理论和方法问题，采用进水日周期性变化曲线来模拟实际进水的动态变化，结合污染物排放呈正态分布和动态平均HRT方法模拟水力延迟对模拟结果的影响，将呼吸法测量直接用于参数估计和模型校正中，使模拟系统能够很好地符合实际系统。

An importance of the self-consistency between the mean-field and the single particle wave functions is stressed even when a small number of nucleons is involved in the configuration change.

组态指定的参考态方法给出激发的HF态及随原子核形变连续变化的平均场，我们的数值结果可以定性地描述Ge同位素实验低激发谱的性质。

This method can make reasonable and timely decisions based on the kinds and precision of forecast information in the course of the rain and flood from occur and develop to recession without decreasing the design flood prevention standard. Being make full use of forecast infor...

该方法考虑了预报误差的规律，能在降雨和洪水发生、发展及消退的演进过程中，按预报信息种类和精度分阶段、分层次地判断洪水量级，并及时作出合理调度决策，既利用了不同预报信息，又考虑了各自的误差风险率，具有可操作性强、洪水资源利用率高的特点，可用于汛期全过程实时调度，运用于隔河岩水库，每年平均增加发电量3900万kW·h。

With such ballistic characteristics, this rifle nicely fills the niche between light, rapid-firing (semi-automatic) sniper rifles in 7.62mm caliber (which have limited capabilities against material targets, heavy body armor and limited range) and heavy, powerful 12.7mm /.50 caliber anti-material rifles which have great destruction potential but usually are too big and heavy (average weight is 14 kg / 30lbs) for rapid deployment and maneuver warfare.

在这样的弹道特性，很好地填补这个步枪与轻，快速射击在7.62毫米口径狙击步枪的利基（已对实物指标，重型防弹衣和有限的范围），重型，强大的12.7有限的能力/。50口径的反物质步枪有巨大的破坏潜力，但往往过大，重（平均体重为14公斤/三零磅）迅速部署和机动作战。

Results showed that soil water content could evidently reduce soil loss by wind on side slope.

结果表明，土壤含水率可以不同程度地减少边坡的平均风蚀量。

Hours of life was hard, eat well and wear well, the material is poor, that the pond has become our spiritual paradise: Sometimes, we have a swim to the pool center, are divided into two groups after the section of the back, they start to mud, water, World War II - the first Biezhu gas, deep Zha Mengzi, to bottom fishing for a number of purple clay, and then the side tread water, while energetically voted to go to each other to see who is cast far away, any way to avoid quick, well-hidden .

小时的生活很艰苦，吃不好也穿不好，物质相当贫乏，那个池塘便成了我们的精神乐园：有时候，我们一块游到池中心，平均分成两组后，各退一段，便开始泥、水大战——先憋住气，深扎猛子，到池底捞一些紫泥，然后一边踩着水，一边使劲地向对方投去，看谁投得远、躲得快、藏得好。

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％。