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In addition, under normal circumstances a good thermal conductivity and are based on copper heat sinks and a heavier weight.

另外，一般情况下导热性好的散热片都是采用铜制的，重量较重。

The paper makes description of effective box beam construction technology and workmanship which can be adopted in other projects,such technologies as:manufacturing and fixing of reinforcement,steel reinforcement fixing baseplate,web plate and top plate respectively and lifting the steel skeleton into form,requirements of design and manufacturing and way of utilization for dismantling-erection type formwork and hydraulic formwork,optimization of concrete ratio,concrete pouring process of two ends of beam in priority over the middle,in sequence of first baseplate followed by web plate and top plate at last,concrete pouring in inclined section and in horizontal layer,concrete vibration mainly byexternal vibrator in assistance with internal vibrator,methods and regulation for steam curing of concrete,dual controls over stress and strain to ensure quality of prestressing workmanship,construction method of effective beam moving by heavy-weight special moving facility,some regulations and key notes about construction of grouting under pressure,beam ends sealing,water-proof layer on the bridge surface system,protective coating.

文中介绍的采用胎具制作和绑扎钢筋，分底腹板和顶板分别绑扎并吊装钢筋骨架入模；拆装式和液压式两种模板的设计、制作要求和使用方法；综合考虑、优化混凝土配合比，混凝土灌注从两端至中间、先底板、后腹板、再顶板的施工顺序和斜向分段、腹板水平分层、附着式振捣为主、插入式捣固为辅的施工工艺，蒸汽养护的方法和规定；应力～应变双控制确保预应力施工质量的施工技术；采用重物移运器有效移梁的施工方法；压浆、封端、桥面防水层和保护层施工的一些规定和注意事项等都是对箱梁制造行之有效的施工技术和施工方法，并可为以后类似施工作借鉴。

Xanthan Gum, which is mainly made from starch, is a high molecular weight polysaccharide produced through fermentation with Xanthomonas Camperstris under the conditions of special nutrient medium, pH, O2-supply and temperature, then purified,dried and milled into white-like or light-yellow free-flowing powder.

黄原胶是一种生物合成胶，呈类白或淡黄色粉末状，是以淀粉为主要原料，由微生物黄单孢杆菌在特定的培养基、 PH 值、通氧量及温度条件下经纯种发酵，再经提炼、干燥、研磨而制成的高分子多糖聚合物。

The main work of our research was to study the effects of the combination of enhanced UV-B radiation 0.35w·m~(-2 and Cadmium 1umol·L~(-1 on the growth, photosynthesis, elements absorption and relocation in mung bean seedlings at the initial stage of growth, and the involving mechanisms about the change of photosynthesis under the different treatments were studied also. It was shown that the heights root length, lateral root length, lateral root number, area of leaves, dry/fresh weight of the overground parts and underground part were all inhibited by the single factor and combinative factors.

本文以0.35w·m~(-2)剂量的UV-B模拟增强UV-B辐射和1μmol·L~(-1)Cd~(2+)模拟Cd~(2+)污染，研究了增强UV-B辐射和Cd~(2+)及其复合处理对绿豆幼苗生长、光合作用以及元素吸收和分配的影响，并对不同处理条件下绿豆幼苗光合作用的变化机制进行了比较深入的分析，获得结果如下：增强UV-B辐射和Cd~(2+)及其复合处理8天，绿豆幼苗植株高度、根长、侧根长、侧根数、叶面积、地上部分干/鲜重和根系干/鲜重均下降。

The paper is concerned with the variation of corrosion weight loss and ultimate tensile strength of 18Ni (350) maraging steel and 7075 aluminium alloy at 120℃, 90℃, 60℃ and room temperature under UF 6 pressure of 13 kPa.

研究了国产18Ni（350）马氏体时效钢和7075铝合金在不同温度及UF6压力为13kPa条件下，腐蚀失重、抗拉强度随时间变化的规律。

Low molecular N,O-carboxymethyl-chitosans with different degrees of substitution were synthesized under heterogeneous conditions by controlling the reaction temperature,the reaction time and the molar ratio of low molecular weight chitosan to chloroacetic acid.

采用不同反应温度、反应时间和低分子量壳聚糖与氯乙酸摩尔比，在非均相反应体系中合成了不同取代度的低分子量N，O-羧甲基壳聚糖。

Vermonters call themselves "woodchucks" because they've learned to hibernate under the weight of it instead of fighting from primacy, as newcomers do.

佛蒙特州人叫他们自己&土拨鼠&因为它们精通冬眠在体重它代替打架做第一位，当作新来的人干。

Vermonters call themselves "woodchucks" because they've learned to hibernate under the weight of it instead of fighting from primacy, as newcomers do.

佛蒙特州人叫它们自己&美洲旱獭&因为它们有学问的去冬眠降低重量来代替好战从首位，就像新到来的移民做的。

Vermonters call themselves "woodchucks" because they've learned to hibernate under the weight of it instead of fighting from primacy, as newcomers do.

那里无止境的积雪堆起是那么的圣洁，依赖它独有的风光，佛蒙特州人说他们自己是&美洲旱獭&，因为他们学会冬眠来代替战斗放在首位，好像是新到来的移民。

He steps up on the chair. It wobbles under his weight.

他踏上椅子，椅子在他的体重下颤动起来。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。