Did you wipe your feet on the mat as you came in?

1、

I wiped my shoes on the mat before I came in.

我在进门前把鞋在垫子上擦了擦.

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2、

He wiped his dirty boots on the mat before entering the room.

他在进屋前把脏靴子在门垫子上擦了擦.

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3、

He often leaves his friends on the mat.

他常拒绝接见他的朋友.

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4、

A Radar receiver's SNR is one of the most important parameters in a radar's performance.

雷达接收机的信噪比是衡量雷达性能指标最要的参数之一.

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5、

The camera design is implemented by the achromatic focal reducer well-designed for very wide wavelength band from optical to the near-infrared, and make some new attempts with wedged dichroic beam splitter non-refrigerated optical-filter wheels and refraction dithering system.

CASCAM相机在设计上实现了光学-近红外很宽波段的消色差变焦，并在楔形分束片、常温滤光片轮和折射式焦面摆动技术等方面进行了新的尝试。

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6、

The utility model relates to a wheeled peanut and corn seeding machine, which belongs to the peanut and corn dibbling machine of the agricultural machine.

属于农业机械的花生玉米点播机，在开有五个型孔的滚轮上分别安有五个带有活舌的管式开穴铲和型孔盒。

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7、

The utility model relates to a simple dibbling machine which can be operated by one person.

一种能够单人操作的简易点种机。

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8、

Other Ingredients: dibasic calcium phosphate, colloidal silicon dioxide, fiber, magnesium stearate, modified cellulose gum and stearic acid.

其它成份：二元钙磷酸盐、胶质二氧化硅、纤维、镁硬脂酸盐、修改过的纤维素胶和硬脂酸。

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9、

The effect is strongest in the peroxide system when dibasic lead phosphate cooperates with zinc stearate.

过氧化物硫化体系中，二盐基亚磷酸铅和硬脂酸铅并用的协同作用最强；

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10、

Calcium hydrogen phosphate, anhydrous; Dibasic Calcium Phosphate;

无水磷酸氢二钙；

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11、

Application of Vertical Screw Conveyer for Powdered Dibasic Calcium Phosphate

垂直螺旋输送机在磷酸氢钙粉料的应用

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12、

Study on Liquid Alkali Developing Type Solder Resists: Reaction Between Dibasic Acid Half-ester with Epoxy Compound

碱水显影阻焊油墨研究&羧基与环氧基的反应熊果酸酯的合成研究

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13、

Synthesis of the Dibasic Acid Mono ester s of the Oleanolic Acid

齐墩果酸二元酸单酯二钠的合成

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14、

The effects of finishes on the quality of PA6 tyre cord were studied. Polyether with relative molecular weight of 5 000 and aliphatic dibasic acid ester were used as lubricants.

探讨了油剂对锦纶6帘子线质量的影响，确定了平滑剂为相对分子质量5000的聚醚及脂肪酸双酯。

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15、

Effect on Mechanical Property of Solvent-type Polyurethane by Dibasic Alcohol Compound

二元羟基化合物对溶剂型聚氨酯力学性能的影响

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16、

If the molar ratio of acid to dibasic alcohol is 2.2, the quantity of SnO to acid is 2%, and the reaction time is 4 h, the yield of diesters can reach 99%.

在石油酸与二元醇的摩尔比为2.2时，氧化亚锡用量占石油酸用量的2%，反应4h可使二元醇羟基的酯化率达99%。

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17、

Improvement of phase change performances of dibasic sodium phosphate Modification of Ce ( SO_4)_2 on Phosphosilicate Gels used as Proton Conductors

十二水磷酸氢二钠相变性能改进研究硫酸高铈对磷硅酸盐凝胶质子导体的改性处理

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18、

Investigation on Treatment of Phosphate-containing Waste Water by Modified Fly Ash Improvement of phase change performances of dibasic sodium phosphate

改性粉煤灰处理含磷废水的探索研究十二水磷酸氢二钠相变性能改进研究

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19、

The results showed that tribasic lead sulfate, dibasic lead phosphite, lead stearate and citric acid were the fast secondary blowing agents and had a stronger activating effect on blowing agent AC;

结果表明，三盐基硫酸铅、二盐基亚磷酸铅、硬脂酸铅和柠檬酸对发泡剂AC都有较强的活化作用，属于加速型发泡助剂；

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20、

The electrical properties of cable immersed-in-water will be better using dibasic lead phthalate and lead stearate as stabilizer.

在配方中应用二盐基性苯二甲酸铅和二盐基硬脂酸铅作稳定系统，更能保证电线电缆料浸水电性能的稳定。

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