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- Results show that cole's height, root length and yield decrease under Cd-Pb and Cd-Pb-Cu compound pollution treatments. Heavy metals' pollution makes cole quality decrease and the effect of Cd-Pb-Cu is the most evident. 结果表明,CdPb和CdPbCu复合污染降低了油菜株高、根长和产量,重金属污染使油菜营养品质下降,Cd-Pb-Cu复合污染对其影响最大;
- With the decrease of soil water potentials, the grain yield decreased, with the transgenic lines decreased less and untransformed WT decreased more. 随土壤水分胁迫的加重，各品系的产量随之下降，但C_4转基因品系的产量下降少，未转基因的对照品种WT下降显著。
- Rice Yields decrease with the increase in the maturity of seedl ings and the delay of the transplanting time. 试验资料分析表明，水稻产量随播种期的推迟和秧龄的增长而明显减产。
- Treated wheat plants ripen earlier. 4.The total yield decreases slightly.This is prob... 4.;产量稍为减低;可能是因为千粒重的增加弥补不了粒数的减少。
- Wood conversion and extract yield increased and gas yield decreased with increasing of pressure. 随着压力的增加,木材转化和萃取物产率增加,气体产率减少。
- The experiment results indicated when irrigation water salinity(ECi) was greater than 1.1 dS/m,cucumber yield decreased with the increasing of ECi. 研究发现当灌溉水电导率(EC)大于1.;1 dS/m时;黄瓜的产量随着EC的增大而降低。
- Spraying MET to over-strong wheat can prevent lodging and increase the yield,however,to most unlodging varieties,the yield decreased. 对旺长麦田喷施多效唑能防止倒伏，对一般不发生倒伏的麦田，大多品种有减产效应。
- We will never yield to invaders. 我们绝不会向侵略者屈服。
- Water stress during anthesis and kernel stage effects most greatly the thousand-grain weight and the grain number per ear,yield decreases more greatly. 花粒期阶段水分胁迫对千粒重及穗粒数影响最大，产量降幅更大。
- The activity of soil microorganism is inhibited at low dose. At high dose, the crop yield is decreased by 10%, and on acid soil,by 50%. Alfalfa and tree are also yield decreased. 低剂量时 ;即可使土壤微生物活性受到抑制 ;高剂量时可使农作物减产 1 0%25 ;在酸性土壤上减产达 50%25以上 ;对苜蓿及树木也同样引起减产 .
- The first yield peak of Agropyron cristatum was during the period of blossom and yield decreased a bit when reaching fruiting time and then increased rapidly in mature period. 杂种冰草干草产量动态第一高峰在开花期,结实期稍有下降,至成熟期又迅速增加。
- The birthrate is on the decrease. 人口出生率正在下降。
- The results showed that the substitution degree (DS) increased but the yield decreased with increasing the reaction temperature and time, the acetic anhydride-cellulose wt ratio and catalyst concn. 结果表明：随着反应时间、反应温度、醋酸酯与纤维素质量比和催化剂用量的提高，其取代度DS增大，但产率降低。
- The decrease in unemployment was 30 percent. 失业人数减少了百分之三十。
- The government projected a tax decrease. 政府计划降低税收。
- There has been a decrease in our imports. 我们的进口减少了。
- Is your production on the decrease? 你们的产量在减少吗?
- The town was forced to yield after a long siege. 该城受长期围困而被迫弃守。
- The result showed that under low light environment plant height/stem diameter increased, while dry weight, specific leaf weight, leaf number, fruit rate, average fruit weight and average plant yield decreased. 结果表明，弱光使植株株高/茎粗增加，干质量、比叶重、叶片数、坐果率、单果质量和单株产量降低。
