fence arbor

与fence arbor相关的网络例句 [注：此内容来源于网络，仅供参考]

Zinc alloy fence / railing, zinc and steel alloy profiles, new building materials: various types of guardrail Series: fence fence, estate fence, high-end residential guardrail fence, balcony fence villas, villas guardrail, traffic barrier, balcony fence, garden fence, etc.; Wire Web Series: Anti-Highway Fence, rail Fence, municipal fence, airport Fence, and other wire mesh products.

锌合金护栏/栏杆、锌钢合金型材，新型建筑材料：各种类型护栏系列：围墙护栏、楼盘护栏、高档住宅护栏围栏、别墅阳台护栏、别墅护栏、交通护栏，阳台护栏，园林护栏等；丝网系列：防公路护栏网、铁路护栏网、市政围栏、机场护栏网、等各种丝网制品。

However remarkable impacts were observed in the plantation in terms of community physiognomy,community structure,species composition,species richness,and biomass accumulation.1 Planting trees made community structure simple.Betula alnoidis plantation had three layers including a dominant arbor layer,a complex and well developed shrub layer and a poorly developed vine layer.The arbor layer contained few species and had a single layer.The mountain rain forest had 4 layers including the dominant arbor layer,shrub layer,grass layer and vine layer.The vine layer was well developed and very rich in species composition,and the arbor layer contained as many as 38 species that could be grouped into 3 layers.2 Sequenced by the important value,main species for the plantation and the nature forest were totally different,and the plantation had one dominant species while the nature forest contained many dominant species.3 Planting trees changed the community physiognomy.

但是人工种植西南桦林对群落的季相外貌、群落的结构、物种组成、物种丰富度以及生物量等方面有较大的影响。1人工造林使得群落结构简化，西南桦人工林的层次结构有3层，以乔木层占优势，并且有种类多而发达的灌木层，同时，藤本植物欠发达，但是乔木层树种单一，明显仅有一层；山地雨林的层次结构有4层，以乔木层占优势，还有灌木层、草本层和藤本植物，藤本植物种类多，十分发达；乔木层树种丰富，可达38种，乔木层还可分为3层。2人工造林较大程度地改变了群落的物种组成，根据重要值的大小排列，人工林和天然林的主要物种组成已经完全不同；并且人工林单优树种明显，而天然林就含有较多的优势树种。3人工造林改变了群落的外貌。

The results indicated that the content of organic matter of the natural meadow and the arbor forest land in the 0-20 cm surface soil grew separately by 36.11% and 32.96%; the nitrogen content of the natural meadow and the arbor forest land was also high, being 66.88 mg/kg and 69.37 mg/kg, respectively; the content of fast-acting potassium in the surface soil was higher than that of meadow ,while the activity of the urea enzyme, alkaline phosphatese and sucrase of the arbor forest land was stronger than that of the other four land utilization modes.

结果表明，天然草地和乔木林地10~20 cm表层土壤有机质增长率均较大，为36.11%和32.96%，二者碱解氮含量也较高，分别为66.88和69.37mg/kg；乔木林地和灌木林地0~20 cm 表层土壤有效磷含量均高于天然草地和人工草地，乔木林地速效钾含量最高。

与fence arbor相关的网络解释 [注：此内容来源于网络，仅供参考]

arbor press：手扳压机

arbor bower 爬花架 | arbor press 手扳压机 | arbor 刀轴

arbor press：矫正机

arbor hole 心轴孔 | arbor press 矫正机 | arbor 刀轴

extension arbor for shell reamer：套式铰刀接长杆

extension arbor for shell face milling cutter 套式面铣刀接长杆 | extension arbor for shell reamer 套式铰刀接长杆 | extension arbor for side and face milling cutter 三面刃铣刀接长杆