查询词典 quantity

According to the change of the enemy\'s quantity and the qualitative theory of the differential equation, we research the spruce aphides and its predator system. At the same time, we discussion the spruce aphid multiplication model when the natural enemy quantity is a certain value and the periodic oscillating model whose the quantity of the natural enemy changes along with the time. Obtains the stability condition of the balance point and the limit-cycle existing condition, the system presents the dissipative structure\'s character. Finally it explains that this theoretical analysis has certain practical significance regarding the preventing and controlling harmful insect.

第五章，松毛虫与其天敌的关系是食饵和捕食者的关系，根据天敌数量的变化，利用微分方程定性理论，研究松毛虫与天敌系统，讨论天敌数量为一定时的松毛虫增殖模型和天敌数量随时间变化的周期振荡模型，得到正平衡点全局稳定性和极限环的存在条件，通过计算机模拟，说明周期振荡的捕食模型能够呈现典型的时间耗散结构特征，对于防治害虫有一定的实际意义。

The change of excavated cavity quantity influence the quantity of Ashy Starling significantly, the change of all cavity influence the quantity of Great Tit and Ashy Starling significantly.

啄洞数量的变化对灰椋鸟的数量变化产生明显影响；样地内总的树洞数量的变化对灰椋鸟和大山雀数量产生明显影响。

0Mg/L 6-benzylaminopurine was the optimal concentration of shoots quantity inducing which frequency of inducing shoots and number of shoots per explant were 100% and 11.1 respectively. 0.5mg/L 6-benzylaminopurine was the optimal concentration of shoots length inducing which average length of shoots was 12.0mm. Explant size had significantly effects on direct shoots quantity and length induction. When complete cotyledon used as explant, frequency of inducing shoots, number of shoots per explant and average length of shoots could approach to 100%, 6.7 and 17.1mm respectively. 2.0mg/L silver nitrate could significantly increase shoot quantity induction, both frequency of inducing shoots and number of shoots per explant could be as high as 97.2% and 4.2 respectively. But silver nitrate also could restrain shoots elongation.

结果表明：不同黄瓜品种直接不定芽数量诱导存在显著差异，但长度诱导无显著差异；6-苄氨基嘌呤对直接不定芽数量和长度的诱导作用显著，其中4.0mg/L为数量诱导适宜浓度，其出芽率和每外植体出芽数达到最高，分别为100.0%和11.1，0.5mg/L为长度诱导适宜浓度，其平均芽长12.0mm；外植体的大小对直接不定芽数量和长度均具显著影响，随着子叶的增大诱导直接不定芽的数量和长度增加，其中单片完整子叶为最适宜大小，其出芽率、每外植体出芽数和平均芽长分别达到100%、6.7和17.1mm；硝酸银也对直接不定芽数量诱导影响显著，其中2.0mg/L为适宜浓度，出芽率和每外植体出芽数分别达到97.2%和4.2，但对芽长有抑制作用。

Methodssmear 0.25% croton oil＼acetone ag on the back of kunming mice,and observe the growth condition of papilloma,then record the quantity of tumor-bearing mice and the quantity of tumor in each mice.results20-ginsenoside rh2 prolonged the incubation of tumor, reduced the quantity of tumor-bearing mice and decreased the amount of tumor in each mice.conclusion20ginsenoside rh2 has obvious anti-papilloma effect on the mice skin.

结果20-人参皂苷rh2对小鼠皮肤乳头状瘤有明显的抑制作用，可使肿瘤发生潜伏期延长，使化学致癌物诱发的荷瘤动物数明显减少，每鼠荷瘤数显著下降。结论20r 人参皂苷rh2在预防癌症的发生和发展方面有重要的作用，也是很有前景的新型抗癌药。

Customs number, export date, export port, code of the business entity, record number, trade mode, destination country, approval document number (number of the verification form of collection of foreign exchange), transaction method, freight, insurance premium, incidental expenses, commodity code, commodity name, primary quantity, primary measurement unit, secondary quantity, secondary measurement unit, transacted quantity, as well as measurement unit, total price, and currency.

海关编号、出口日期、出口口岸、经营单位编码、备案号、贸易方式、运抵国、批准文号、成交方式、运费、保费、杂费、商品编号、商品名称、第一数量、第一计量单位、第二数量、第二计量单位、成交数量及计量单位、总价、币制。

One, the physical quantity that the fundamental point that the physical quantity that describes mechanical vibration and mechanical wave is proposition of the university entrance exam describes physical quantity of simple harmonic motion to the; such as amplitude, periodic, frequency, speed, acceleration, phasic, phasic difference describes mechanical wave has amplitude, wavelengh, velocity of wave, periodic, frequency to wait.

一、描述机械振动和机械波的物理量是高考命题的基础点描述简谐运动物理量有振幅、周期、频率、速度、加速度、相位、相位差等；描述机械波的物理量有振幅、波长、波速、周期、频率等。

It is with printing and section contrast, 124 smear have nuclear cell to decrease in, 58.9% decrease with the 66.1% positive that it is a holiday, common by accident for; of bring down of aplastic anemia, hematopoiesis printing and section cell quantity increase examine disease in, smear still has 26% decrease with the 36% negative that it is a holiday, common disease or conclusion are grow in quantity of red blood cell of lienal function hyperfunction, true sex disease, special the; such as disease of grow in quantity of the plaque that send a gender printing and section cell bring down person in, smear is accorded with rate (91.2% with 97.9%), and in the person that smear cell increases, printing and section are accorded with rate (95% with 100%) all tall.

以印片和切片为对照，124例涂片有核细胞减少中，58.9%和66.1%为假阳性减少，常见误诊疾病为再生障碍性贫血、造血减低；而印片和切片细胞量增加中，涂片仍有26%和36%为假阴性减少，常见疾病或结论为脾功能亢进、真性红细胞增多症、特发性血小板增多症等；印片和切片细胞减低者中，涂片符合率(91.2%和97.9%)，以及涂片细胞增加者中，印片和切片符合率(95%和100%)均高。

To calculate the quantity of overall airiness most importantly depends on the exhaust quantity of harmful air. In the research, we get the quantity of the overall airiness by achieving the datas of consumption of organic impregnant per year and one year' s work time in the company, and it is efficient to measure the harmful air exhausts.

对全面通风换气量的计算，关健在于是否了解有害气体的排放量，本研究通过了解该公司有机溶剂年使用量与年工作时经过计算而得，这种方法不失为了解有害气体排放量的一种有效途径。

The quantity of AQP4 mRNA was measured by methods of RT-PCR.We observed it in model group was statisticsly higher than that of control group.The quantity of AQP4 mRNA in intervenor groups was remarkably lower than that in model group.Yet, the quantity of AQP4 mRNA in intervenor groups obviously increased compared with control group.

4与对照组相比较，模型组各时间点的AQP4 mRNA的含量均显著升高，以造模后第24h最明显；AQP4干预组和HO-1干预组在各时间点的AQP4 mRNA的含量均显著高于对照组，但明显低于模型组AQP4 mRNA的含量。

If large, bulk goods are not belong to the administration of "one lot one license", the quantity is cut according to actual quantity of export when every lot of good is exported. When the last lot of goods is exported, the overfilled quantity is calculated in accordance with actual left quantity 5 per cent of stipulated upper limit of overfilling.

不实行&一批一证&制的大宗、散装货物，每批货物出口时，按其实8ttt8.com 际出口数量进行核扣，最后一批出口货物出口时，其溢装数量按该许可证实际8ttt8剩余数量并在规定的溢装上限5%内计算。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。