查询词典 fir pine
- 与 fir pine 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The cascade of FIR digital filter and PPSV is used to control chaos and hyperchaos in nonlinear continuous system.
利用数字FIR滤波器和正比于系统变量的脉冲反馈法的级联控制非线性连续系统中的混沌和超混沌。
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The chicken rice and chicken broth were in the little fir barrel.
最让人难忘的是挑着鸡饭走街串巷的小贩。
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Models have been developed for predicting sound seeds and total seeds per cone by means of the cone cuttingfor Chinese fir. Number and quality of seeds per cone have been analysed and estimated.
本文利用球果切开法建立了预测杉木全果饱满种子数和种子总数的预测模型,同时对杉木球果中种子的产量和质量作了估测和分析。
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It's necessary to have a simple and systematic digital model in thinning decision-making. In the paper, the tree location map of 150 m x 30 m Luanta-fir in Hui-Sun Forest Experimental Station were digitized in GIS and thinning simulation by random, Telathaki-Wadali-Chi, DBH class and crown competition index method.
本研究系利用GIS 配合林木位置图,以惠荪林场之150m x 30m 香杉采穗园为研究材料,以生产大径材为目的的考量下,针对疏伐木之选择,利用随机法、寺崎渡氏法、胸径级法、树冠指数法等四种方法加以模拟、评估、探讨。
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The results show that as the crown density reduces the foresttype diversity increases and as the diversity goes up the stability of stand comes down; that the forest is under regressive succession and its stability now is the lowest; that the growth of spruce and fir trees has obviously a n...
结果表明:该林区的林分类型多样性随郁闭度的降低而增加,林分的稳定性随多样性的增加而降低,林分处于逆向演替过程中,林分的稳定性处于最低限;云、冷杉林与环境因子——海拔之间呈明显的负相关;在高海拔区云、冷彬林十分脆弱,一旦原有种群结构的郁闭度低于0.3,森林的稳定性将被破坏,即使在完全封禁的条件下,25年生的疏林要恢复到有林地状态,需要40年的时间。
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Product Description: Metal Vertical Blind, fir e p l a c es net, metal curtain net, metal decorative net.
商品简述:金属垂帘,壁炉网,金属窗帘网,金属装饰网。
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Clear-cuts eat into stands of 55-year-old spruce, fir, and redwood trees on Green Diamond company land in Humboldt County.
在洪保德县绿钻公司的地盘上,&剔光头&砍进了55年生的云杉、冷杉和红杉林里。
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Clear-cuts eat into stands of 55-year-old spruce, fir, and redwood trees on Green Diamond company land in Humboldt County.
25:地质学家尼尔·杨布拉德拿着的是一张航空图片,包括了1978年红杉国家公园的48000英亩区域,当时这个地区轮廓分明,还有450英里伐木道路。
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The dependence between the flexural strength and the size of Chinese fir dimension lumber was investigated.206 dimension lumbers were sorted into three test groups in terms of dynamical modulus of elasticity.
选取206根人工林杉木规格材,按照动态弹性模量配成3个测试组,研究了规格材测试跨度与其抗弯强度之间的依存性,并利用斜率法和形状参数法求得抗弯强度5%分位值和50%分位值的长度尺寸效应。
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This wood take full advantage of operating the Department of Jiangxi in many mountain areas, hilly geographical advantage to develop the region's bamboo resources and related wood products, development and operation of a variety of specifications Bamboo: Small mangosteen, bamboo dish rack, mosquito nets bamboo, flower drying screens,board, bamboo tail, bamboo, Chinese fir, a variety of logs, a variety of wood products, agricultural products and tree seedlings.
本木竹经营部充分利用赣中地区多山地,丘陵的地理优势,开发本地区的竹木资源及相关竹木制品,开发经营各种规格毛竹:小山竹、菜架竹、蚊帐竹、晒花帘、竹架板、竹尾、竹片,杉木,各种原木,各种竹木制品、农副产品及树苗。
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- 推荐网络例句
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Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.
目前大多数的研究表现为在变形后的受控Petri网基础上,利用各种方法求得各种逻辑型、结构型控制器,解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。
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On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.
一方面,有讨论,工程理事会和联盟关于延长工作时间短至9月底。
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What is the topic sentence of this article?
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