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The effect of the tool composition on the friction and wear behavior was investigated,and the morphologies of the rake face and rear face of the tool cutting the steel in air and nitrogen were observed on a scanning electron microscope. It was found that the Al_2O_3/TiB_2 tool was dominated by adhesive and abrasive wear in low speed dry cutting; while in high speed dry cutting,the tool was characterized by oxidation wear. An oxide layer of TiO_2 was formed by way of the oxidation of the reinforcing agent TiB_2 at a very much high cutting temperature, which contributed to greatly reducing the friction coefficient and increasing the antiwear life of the tool.Such a friction-reducing and antiwear behavior of the oxide layer was enhanced with increasing content of TiB_2 in the tool composite. However,the tool showed a relatively poorer wear resistance in N_2 than in air, because N_2 acted to retard the oxidation of the TiB_2 and the formation of the oxide layer on the tool rake face.

结果表明：低速干切削时，Al2O3/TiB2陶瓷刀具的磨损机制主要表现为粘着磨损和磨料磨损；而在高速干切削时，刀具的磨损机制主要表现为氧化磨损，刀具表面经由氧化反应生成具有润滑作用的反应膜而起到固体润滑作用，从而使刀具的耐磨性能提高，随着TiB2含量和切削速度的增加，反应膜的减摩抗磨作用增强；而在切削区通入氮气时，由于刀具表面氧化膜形成受阻，刀具的抗磨能力有所降低。

Inhibitor is a chemical species or admixture, which exists in the medium and can prevent from corrosion or retard corrosion. It is an effect method to use inhibitor to prevent metals and its alloys corrosion in environmental medium.316L stainless steel is an austenitic stainless steel consisting molybdenum, and its corrosion resistance was improved much than normal stainless steel.

缓蚀剂是一种以适当的浓度和和形式存在于环境中时，可以防止或减缓腐蚀的化学物质或几种化学物质的混合物，合理使用缓蚀剂是防止金属及其合金在环境介质中发生腐蚀的有效方法。

Place sporocarps into waxed paper bags or wrap in waxed paper to retard drying (avoid plastic bags because sporocarps deteriorate rapidly in a "non-breathing" container).

将孢子果装於蜡纸袋中，以减缓乾燥(避免用塑胶袋，因为孢子果在无法呼吸的容器中，会快速劣化)。

You retard Misery, MYM got raped 4-1 by EHOME at scrims and you fnatic players hav to offer your inflated balls to the devil everytime you play vs MYM to win.

烧饼Misery，MYM在训练赛里被EHOME以4-1蹂躏了，而你们Fnatic每次与MYM打比赛时都把菊花准备好了给别人虐。

The C-V profiles display two well-separated sharp peaks that are originated from the ground and excited states of the QDs, respectively , suggesting an improved uniformity and decreased dot density. The addition of Sb can retard the 3D growth mode and expand the critical thickness of the growth mode from 2D to 3D.

G。比值从0.6937提升至1.2102与光性分析有相同趋势，半高宽有下降趋势显示随Sb增加量子点有较均匀的现象；在Sb含量最多的样品发现，随著量测频率下降基态的浓度有明显增加的趋势(2×1017增加至2.15×1019)，使的基态峰值显得更陡峭，由於可以在电性明显的量测出基态的变化，是因为量子点密度低与均匀度好的原因，这个结果与之前的分析有相同趋势。

The aim of the experiments is to develop a kind of compound quality improver which can effectively retard the aging of sticky rice products with modified starch, emulsifier and food gum.

该试验旨在以变性淀粉、乳化剂、食用胶为原料，研制一种能有效延缓糯米糕团老化回生的品质改良剂。

Blow dry damage can be prevented by using products containing glycerin and propylene glycol because these actives retard water evaporation.

吹干头发的损伤是可以通过使用一些含有甘油和丙烯乙二醇的产品来预防的，因为这些有用的成分可以减缓头发的水分流失。

However, small number recent studies have indicated that overpressure will retard the clay mineral transformations and enhance the activity energy of kinetic reactions.

然而新近的一些研究表明，超压可以抑制粘土矿物的转化，增加反应活化能。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。