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The present paper reviewed advances in plant defense mediated by the signal function of plant VOCs. In some cases plant VOCs can have a direct defense mechanisms against herbivory. It is believed that VOCs can transfer within plant and between the plants of the same species and different species to improve the defense mechanisms of the respective plants, indicating their crucial role in ecosystem function.

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The present number of 368 corporate employees, annual sales of 80,000,000 yuan, annual production of more than 12,000 tons of various casting and foundry equipment production, the main production facilities, such as the United States Hunter production line in Zhejiang round of the Bank of Machinery Co., Ltd., Zhejiang Leo shares Ltd., the first Shanghai Textile Machinery Plant, China Precision Machine Tool Plant Jack, Warner, Ningbo and Taizhou of good casting Co., Ltd., Suzhou Wujiang David Weir Iron Foundry Co., Ltd., Xianju Hydraulic Casting Plant, Sally Home Shuangshi foundry, Xianju Hengxi machinery plant, Linhai City, a strong metal Manufacturing Co., Ltd., Zhejiang Province made a total of Linjiang Casting Co., Ltd., Taizhou ......, Bo Li Machinery Co., Ltd. and Italy for the meat grinder, Spain pumps, water pumps Perkins Germany, the United States Cummins customers abroad pumping facilities and so on.

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2 Removal of 39.1 Improper Work, Materials or Plant The Engineer shall have authority to issue instructions from time to time, for: the removal from the Site, within such time or times as may be specified in the instruction, of any materials or Plant which, in the opinion of the Engineer, are not in accordance with the Contract, the substitution of proper and suitable materials or Plant, and the removal and proper re-execution, notwithstanding any previous test thereof of interim payment therefore, of any work which, in respect of materials, Plant or workmanship, or design by the Contractor or for which he is responsible, is not, in the opinion of the Engineer, in accordance with the Contract.

工程師有權(quán)隨時(shí)發(fā)出指令：在指令規(guī)定的時(shí)間內(nèi)一次或分幾次從現(xiàn)場(chǎng)運(yùn)走工程師認(rèn)為不符合合同規(guī)定的任何 34 不合格工 39.1 程又爽又粗又大欧美日韩精品视频，材料或設(shè)備的拆除和運(yùn)走材料或設(shè)備；用適用合格的材料或設(shè)備取代原來的材料或設(shè)備国产一级婬片日本高清视频一；對(duì)盡管先前已進(jìn)行過檢驗(yàn)或中間支付国产好福利影院，但工程師認(rèn)為材料，設(shè)備或施工工藝高清一区二区三区视频久草，或由承包人本身進(jìn)行的或由其負(fù)責(zé)設(shè)計(jì)的不符合合同規(guī)定的工程拆除并重新施工为搞点激情。

The main researching contents included as following:relationships betweenspecies diversity,community richness,vegetation succession,soil volume weight,solu-ble Na+concentration and five soil chemical elements(N、P国产精品性色AV、K免费看黄色网站大全、Ca、Mg)concentrationwith grazing intensities in the grassland.Relationships between concentrations,re-serve pools of plant nutrient materials,including five macroelements(N0808贵妃网理论片、Psese96、K、Ca天海翼精品久久久久中文字幕、Mg),crude protein,crude fibre,crude fat and total nonstructural carbohydrate,and their allocations in defferent plant parts with grazing intensities in thegrassland.Effects of grazing on Leymus chinensis population were also examined andthat more attentions were paid on the responses of many biological characteristics ofabove-and below-ground plant modules to different grazing intensities.Furthermore,in the respects of plant production,survival rate,tillering ability,total nonstructuralcarbohydrates content and others,the effects of one years different defoliationpatterns on the vitality of Leymus chinensis population were detected.

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