Based on the activity level and emission factors, we estimated the provincial mercury emissions from non-coal sources during the period of 1995 ~ 2003 in China.
根据各种非燃煤大气汞排放源的活动水平和排放因子，估算了1995 ~ 2003年中国分省非燃煤大气汞的排放量。
Field experiments were carried out on Loess Plateau to investigate the effects of cropping on the physical and chemical properties, phosphatase activity, and N2O emission of upland soils.
通过大田试验研究了黄土地区种植作物对旱作农田土壤理化性状、磷酸酶活性以及土壤n2o排放的影响。
The wheat planting and film mulching all increased the soil phosphatase activity and N2O emission flux, applying fertilizer could enhance the phosphatase activity.
农田种植小麦和覆膜均增加了土壤磷酸酶活性和N2O的排放。
The researchers systematically assessed the effect of zolpidem on motor and cognitive function and explored its effect on brain activity using positron emission tomography (PET) scans.
研究者系统的评估了唑吡坦在运动和认知功能方面的作用，并用正电子体层扫描探究其在脑活性方面的作用。
The deeper the notch was, the lower the activity of acoustic emission was, and the smaller the amplitudes of acoustic emission events became.
缺口深度越大，声发射活动性越小，声发射事件振幅较小。
The activity of the after peak acoustic emission would be mainly affected by the rock strength.
峰后声发射活性主要受岩石的强度影响。
Rare earth perovskite-type oxide catalyst as a substitute for traditional rare metal catalyst has a great potential to purify automotive emission due to good catalytic activity and low cost.
钙钛矿型稀土氧化物催化剂具有较好的催化活性，成本低廉，在替代传统的贵金属催化剂净化汽车尾气方面潜力巨大。
Modification of histidine residue did not change the activity of enzyme and its fluorescence emission peak intensity.
组氨酸残基被修饰后酶活力基本不变，酶的荧光强度也不改变。
Modification of histidine residue did not change the activity of the enzyme and its fluorescence emission peak intensity.
组氨酸残基被修饰后酶活力基本不变，酶的荧光强度也不改变。
Modification of histidine residue did not change the activity of the enzyme and its fluorescence emission peak intensity.
组氨酸残基被修饰后酶活力基本不变，酶的荧光强度也不改变。
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