查询词典 base 2

The invention relates to an amplifier circuit containing a high-frequency transistor (1) and having a circuit (2) for adjusting the operating point, which provides a base current for the high-frequency transistor (1) according to the voltage released at a resistor (3) which is connected in the collector ring of the high-frequency transistor (1). The circuit (2) has a differentiating unit (20), fed by the supply voltage, which compares the voltage released at the resistor (3) with a reference voltage.

带有高频晶体管(1)的放大器电路具有一个用于工作点调整的电路(2)，其依赖于在连接在高频晶体管(1)的集电极电路中的电阻(3)上下降的电压为高频晶体管(1)提供基极电流，电路(2)具有一个由供电电压馈电的差分节(20)，其把在电阻(3)上下降的电压与基准电压比较。

Fruit ovoid, ca. 4 × 2.5 mm, base cordate; vittae 1 in each furrow, 2 on commissure.

果卵球形，约4×2.5毫米，基部心形；油管每棱槽1，在合生面上2。

Ovary (2 or)3-locular, base confluent with disk; ovules erect, 2 per locule.

子房(2或者)3室，基部与花盘合生；胚珠直立，2每室。

Staminate flower: tepals 2 or 4 and decussate, usually outer ones larger, inner ones smaller; stamens usually numerous; filaments free or connate at base; anthers 2-celled, apical or lateral; connectives extended at apex, sometimes apiculate.

雄花：花被片2或者4 并且交互对生，通常外部的大，内部的小；雄蕊通常多；花丝离生或在基部合生；花药2室，在顶端或者在侧面着生。药隔延长在先端，有时具细尖。

Hot fluid calcite carbolic isotope ‰ of ~2.9 of ‰ of =-1.2 of δ 13C calcite, show among them C basically originates fluid convection is opposite in circular process of layer of the carbonate in base rock deliquescent.

热液方解石碳同位素δ13C方解石=-1.2‰~2.9‰，显示其中的C主要来源于流体对流循环过程中对基底岩石中碳酸盐地层的溶解。

Associates decided to clear out his information, after publishing the data about testingresults forvideo card geForce 8600 GTS and GeForce 8600 GT in the composition of system on the base of the dual core processor core 2 Extreme x6800 (2.93 GHz).

他的同伙决定滚出信息在公布测试结果数据视频卡霸主霸主8600吨，在8600年电信和系统组成在基地的双核心处理器核心2极端x6800(2.93千兆赫)。

The results indicated that organic fertilizer at a rate of 75000 kg/ha or organic fertilizer (75000 kg/ha) with compound fertilizer at a rate of 300 kg/ha had higher effects on genetic diversity of soil microbial community under field conditions. Treatment of fertilizers as base application at level of 600 kg/ha resulted in decrease of DNA sequence richness index and diversity index of soil microbial communities, and the similarity coefficient of DNA sequence from soil microbial communities was the lowest compared with control. Organic fertilizer treatment was conducive to increasing DNA sequence diversity index and evenness index of soil microbial communities.

结果表明，在本试验条件下，基肥为75000kg/hm^2有机肥处理和75000kg/hm^2有机肥加300kg/hm^2复合肥处理最好；基肥为600kg/hm^2复合肥处理使土壤微生物群落DNA序列丰富度指数和多样性指数显著下降，与对照的DNA序列相似系数最低；有机肥处理有利于土壤微生物群落DNA序列多样性、均匀度和黄瓜产量的提高。

Leaves sessile; blade broadly oblong or oblong-ovate to narrowly oblong or oblong-lanceolate, 2-6.5(-8)× 1-3.2 cm, thickly papery, abaxially rather paler but not glaucous; laminar glands dense, unequal dots or short streaks; intramarginal glands dense; main lateral veins 4-6-paired, with densely reticulate tertiary venation not or scarcely prominent abaxially; base cordate-amplexicaul, apex rounded to shallowly retuse.

叶无柄 叶片宽长圆形或长圆状卵形到狭长圆形或长圆状披针形， 2-6.5(-8)* 1-3.2 厘米，厚纸质，背面相当浅但不是苍白；片状腺体浓，不相等的小圆点或者短的条纹；近边缘内腺体浓； 4-6配对的主要侧脉，突出的具密网状第三脉不或几乎不；抱茎基部心形，先端圆形对浅微凹。

Basal and lowermost cauline leaves compound, 5-9-foliolate; petiole (3-)8-15(-20) cm; leaflets broadly oblong, ovate, or lanceolate,(2-)4-7(-10)×(1-)2-3(-4) cm, base oblique, cuneate, or subtruncate, margin coarsely serrate with a distinct mucro at tooth apex, apex obtusely acuminate with a distinct mucro; petiolule 1-5(-20) mm. Upper cauline leaves 3- or 5-foliolate, becoming gradually smaller and narrower upward.

基部和最下的茎生叶复合，5-9具小叶；叶柄(3-)8-15(-20)厘米；小叶宽长圆形，卵形，或披针形，( 2-)4-7(-10)*(1-)2-3(-4)厘米，基部偏斜，楔形，或近截形，有粗锯齿的边缘具离生短尖头钝在齿先端，先端时候渐尖具离生短尖头；小叶柄1-5(-20)上面的毫米茎生叶3-或者具5小叶，向上变得逐渐更小和更狭窄。

objective to discuss perioperative complication and management of patient with high risk copd following esophagectomy.methods 45 patients with high risk copd underwent esophagectomy with epidural block combined with general anesthesia.perioperative treatment included smoking cessation,chest physiotherapy,prevention and control of infection of air way and appropriate bronchodilators of air way,breathing exercises,nutrition support and oxygen therapy.painkiller was instilled after surgery,early exercises,ensuring unobstruction of the air way,mechanical ventilation was applied when needed.results 3 had hypoxaemia in operation.after surgery,all patients had spo2 somewhat declined.6 had lung infection.6 were removed of bronchial secretion by bronchoscope.2 were supported by ventilator by using intubation.2 underwent tracheotomy.1 had disturbances of acid base balance and treated by using hydrochloric acid muriatic acid.all patients recovered rather smoothly and discharged from hospital.conclusion high risk copd is not the absolute contraindication of esophagectomy.active management before and after surgery ensures the safety and recovery of patients.

目的 探讨重度慢性阻塞性肺疾病简称慢阻肺病人食管切除术围手术期常见并发症及其处理。方法 45例重度慢阻肺的病人在全麻联合硬膜外阻滞下进行开胸食管切除手术，围手术期处理包括术前戒烟、胸部理疗、预防和控制呼吸道感染、解痉化痰、呼吸功能锻炼、营养支持和氧疗；术后硬膜外镇痛、早期锻炼、保持呼吸道通畅，部分病人予以呼吸支持。结果术中3例出现低氧血症。术后所有病人pao2均有不同程度的下降，6例出现肺部感染，6例行纤维支气管镜吸痰，2例通过气管插管给予呼吸机支持，2例行气管切开术，1例酸碱平衡紊乱使用盐酸精氨酸治疗。所有病人均痊愈出院。结论重度慢阻肺病人并非开胸食管切除手术的绝对禁忌证，积极的术前准备和严格的术后管理可减少和控制术后急性发作，有助于确保此类病人的围手术期安全和康复。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐