集材

The mechanism of soil erosion at different degrees was expounded,which was caused by different cutting methods, skidding method s,and cutover land cleaning methods in forest operation techniques.

本文分析森林作业技术中不同采伐方式、集材方式和迹地清理方式造成的不同程度水土流失的机制，提出防止因森林作业而导致水土流失措施：合理选择采伐方式，避免大强度采伐，选择对土壤破坏小的集材方式，使剩余物对雨水保持截持作用的迹地清理方式。

Treefelling machinery and skidder do not come under the scope of this category of goods.

森林砍伐机械、集材机械不属于本货物征收范围。

Just as the average tax payer would probably commit more mathematical errors if he were to try to use a computer to complete his income tax return, the average logger misuses, and frequently abuses, the equipment he purchases (for example, drives a skidder with two flat tires, doesn't change the oil filter).

就像一般的纳税人会更容易承认数学上的错误一样，如果他尝试用电脑完成他的个人所得税返还表的话。如果伐木者更普遍地误用，更经常地滥用那些他买的工具比如说，用两个扁的轮胎驾驶一个集材机，却不改变机油滤清器。

On the base of studying and analysing the reason of skidding disturbance to forest ecology in felling areas.

调查了伐区集材作业对森林中保留木、地表的破坏及对土壤的压实等情况。

The eighth green is a combination of the themes of the second and fourth: from the tee of this 155 yarder, the green appears pitched back to front toward the tee.

第八项是绿色的主题，结合第二和第四：自本155集材绞盘机T恤，绿色似乎对音调回发球的前面。

This paper,based on the study on the structure,working principle and safety factors of the timber-collected board-vehicle , made out four cases-using timber-enlaced machine,improving on brake-staff,adding iron fortified muscle and making brake oriented-block,which can improve the safety of the board-vehicle when it collects timber on the steep slope.

通过对集材板车的结构、集材方法及其安全性的研究，给出 4种改进技术措施，即使用木材捆扎机械装置、改进制动系统、增设铁制加强筋和使用制动导向滑轮，以提高集材板车在陡坡集材时的安全性改进后的集材板车在 4 0 0 0hm2 的林木集材试验中，安全可靠度达 10 0

Fords dieselled past me at a constant rate, the men inside gripping Tim Hortons cups, their truck beds carrying bright-red Tidy Tanks filled with fuel destined for the skidders, feller-bunchers, buttontop loaders, and other hulking machines of the forest.

过去，福特以恒定速率失利，Tim Hortons的内部，扣人心弦的男子，他们的卡车运载床鲜红色为燃料的集材机注定充满整洁坦克，费勒-装载机，以及其他笨重机器的森林。

Maximal gradient ; Maximal slope length ; Tractor skidding trail

最大坡度；最大坡长；拖拉机集材道

The conclusion is that the maximal gradient: of the tractor skidding trail depends on: the adhesive force while the tractor is uphill without load, when the full loaded tractor is downhill using the engine to brake the tractor and control the tractor velocity, the reliable lubrication of the engine.

结论是：规范关于集材坡道最大坡度的规定，主要由空车上坡时附着力、重载下坡时利用发动机制动且变速器挂低档控制拖拉机下滑速度及保证发动机可靠润滑等因素决定。

Study on the Analysis of the Skidding Production Optimization Selection in Southern Collective Forest Regions;2. Study on the Reversal Direction Arisen When 50 Crawler Is Skidding at Steep Slopes;3. Skidding method can be determined by production efficiency and ecological environment.

介绍了目前国内外生态型伐区集材概况及类型，较详细地分析了6种生态型伐区集材模式的优缺点及适用条件，指出中国山地伐区应广泛推广直角横向集材和双向循环索道集材方式。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。