查询词典 conservation

He practiced crop rotation and soil conservation a century before these became standard practice, and he invented a plow superior to any other in existence .

在人们普通采用农作物轮作和土壤保持的做法之前一个世纪，他就这样做了。他还发明了一种比当时任何一种都好的耕犁。

To find a balance between the needs of local people and biodiversity conservation, Crosby said.

要在当地人的需求和生物多样性保护之间取得平衡

By the furnace body, the stainless steel crucible, electrically operated toward the multiple swinging material frame, stainless steel fast Leng Bao, the heating unit and control the warm cabinet to be composed automatically, may use the different resolver, carries on components quenching, the tempering heating, the isothermal quench to cool, the liquid thermochemical treatment and so on many kinds of crafts, the furnace body becomes by the section and the steel plate welding, the stove surface uses δ=14mm the board to make, the nitre salt furnace lining uses the ultra light quality high strength 0.6g/cm3 micro bead refractory brick, clamps the stratification aluminum silicate textile fiber, the furnace lining and the furnace shell fills the heat preservation inflation heat preservation powder, the entire structure for the standard energy conservation furnace lining, the nitre salt stove's heating element uses the thick diameter 0Cr25Al5 high temperature resistance wire to circle spiral-shaped according to the average temperature cloth silk law,Places in the furnace lining puts on the silk brick, puts the silk brick to use the front part to go up 20° against falls the silk brick, the resistance wire is not easy to drop out.

由炉体、不锈钢坩锅、电动往复式摆动料架、不锈钢速冷包、电热元件和自动控温柜组成，可以使用不同溶剂，进行零件淬火、回火加热、等温淬火冷却，液体化学热处理等多种工艺，炉体由型钢和钢板焊接而成，炉面采用δ=14mm板制成，硝盐炉衬采用超轻质高强度0.6g/cm3微珠耐火砖，夹层置硅酸铝纤维，炉衬与炉壳间填充保温膨胀保温粉，整个结构为标准型节能炉衬，硝盐炉的发热元件采用较粗直径0Cr25Al5高温电阻丝绕成螺旋状按照均温布丝法，安置在炉衬的搁丝砖上，搁丝砖采用前部上翘20°防掉丝砖，电阻丝不易掉出。

Furnace shell by section and steel plate welding full circle tubular, the chamber becomes by the 0.6g/cm3 ultra light quality micro bead energy conservation fireproof brickwork, his/her the endophragm all around even installment heater element, the crucible salt bath's chamber and the furnace shell fills the aluminum silicate textile fiber felt and the inflation heat preservation powder thermal insulation material, in the chamber places the high-temperature steel crucible, uses in the splendid attire salt fluid, the crucible cover by two semicircle constitutions, but rotates nimbly, covers has two holes, supplies the journal to hang the work piece.

炉壳由型钢和钢板焊接成圆筒形，炉膛由0.6g/cm3超轻质微珠节能耐火砖砌成，其内壁四周均匀安装加热元件，坩锅盐浴炉的炉膛与炉壳间填充硅酸铝纤维毡和膨胀保温粉保温材料，炉膛内置放耐热钢坩埚，用于盛装盐液，坩埚盖由两个半圆构成，可灵活转动，盖上有两个孔，供支承轴吊挂工件。

Furnace shell by section and steel plate welding full circle tubular, the chamber becomes by the 0.6g/cm3 ultra lightquality micro bead energy conservation fireproof brickwork, his/her the endophragm all around even installment heater element, the crucible salt bath's chamber and the furnace shell fills the aluminum silicate textile fiber felt and the inflation heat preservation powder thermal insulation material, inthe chamber places the high-temperature steel crucible, uses in the splendid attire salt fluid, the crucible cover by two semicircle constitutions, but rotates nimbly, covers has two holes, supplies the journal to hang the work piece.

炉壳由型钢和钢板焊接成圆筒形，炉膛由0.6g/cm3超轻质微珠节能耐火砖砌成，其内壁四周均匀安装加热元件，坩锅盐浴炉的炉膛与炉壳间填充硅酸铝纤维毡和膨胀保温粉保温材料，炉膛内置放耐热钢坩埚，用于盛装盐液，坩埚盖由两个半圆构成，可灵活转动，盖上有两个孔，供支承轴吊挂工件。

By the furnace body, the stainless steel crucible, electrically operated toward the multiple swinging material frame, stainless steel fast Leng Bao, the heating unit and control the warm cabinet to be composed automatically, may use the different resolver, carries on components quenching, the temperingheating, the isothermal quench to cool, the liquid thermochemical treatment and so on many kinds of crafts, the furnace body becomes by the section and the steel plate welding, the stove surface uses δ=14mm the board to make, the nitre salt furnace lining uses the ultra light quality high strength 0.6g/cm3micro bead refractory brick, clamps the stratification aluminum silicate textile fiber, the furnace lining and the furnace shell fills the heat preservation inflation heat preservation powder, the entire structure for the standard energy conservation furnace lining, the nitre salt stove's heating element

由炉体、不锈钢坩锅、电动往复式摆动料架、不锈钢速冷包、电热元件和自动控温柜组成，可以使用不同溶剂，进行零件淬火、回火加热、等温淬火冷却，液体化学热处理等多种工艺，炉体由型钢和钢板焊接而成，炉面采用δ=14mm板制成，硝盐炉衬采用超轻质高强度0.6g/cm3微珠耐火砖，夹层置硅酸铝纤维，炉衬与炉壳间填充保温膨胀保温粉，整个结构为标准型节能炉衬，硝盐炉的发热元件采用较粗直径0Cr25Al5高温电阻丝绕成螺旋状按照

Using cubic spline interpolation function, we construct a finite element model to approximate the nonlinear Schr〓dinger equation, and provide a complete discrete scheme with the conservation properties of mass and energy.

本章从应用角度出发，着重讨论孤波形式的解的计算，为此我们利用三次样条函数的插值基函数构造出非线性薛定谔方程的一个有限元离散模型，给出了具有保质量与能量守恒的全离散计算格式。

Energy conservation and environment protection of cupola are important problem pressing for solution in current cupola melting.

冲天炉的节能与环保是密切相关的，是当前冲天炉熔炼中影响质量、效益和环境保护的急待解决的重要问题。

These characteristics have important significance to research on plant anatomy, cycad biology and cycad conservation.

这些对于植物解剖学和苏铁类植物生物学研究及保护等均具重要意义。

Keywords: Cycas;Population structure and dynamics; ISSR; conservation genetics

中文关键词：苏铁；种群结构与动态；ISSR；保护遗传学

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。