月下

Because acid rain can transport excessive hydrogen ion into the soil, then cause decrease of pH value and cation saturation, accelerate acidify of soil, therefore, it is significant to study the ecological effects of combined pollution for heavy metals under intimidation of acid rain in the regions where acid rain often take place.

土壤吸附-解吸试验的土壤按照既定方案处理后，在25±1℃，土壤水分20％左右条件下培养2个月，待重金属元素与土壤的反应基本稳定后制样进行等温吸附—解吸试验，研究紫色土在单一及复合条件下镉、锌的吸附特征和酸雨胁迫下的解吸特征以及此条件下吸附一解吸与镉、锌生物有效性的关系。

Method］reversed sural neurofasciocutaneous flap with muscle was applied for repairing the soft tissue defect simultaneous open fracture of tibia lower section 6 cases,the soft tissue defect simultaneous chronic osteomyelitis of tibia lower section 5 case,the soft tissue defect of sole of foot simultaneous calcaneus epicarp 3 case, the soft tissue defect of sole of foot simultaneous calcaneus osteomyelitis or dead space 2 case. the scope of the flap was 18 c m×13 cm～11 c m×7 c m and that of the gastrocnemius flap was 4 cm×3 cm～9 c m×6 cm,the thickness was 1～3 cm,the skin flap was bigger than the muscle flap.

方法］自2004年6月以来，应用带肌肉的腓动脉穿支蒂腓肠神经营养血管皮瓣修复小腿下段及足踝部软组织缺损16例，其中胫骨下段开放性骨折伴软组织缺损6例，胫骨下段软组织缺损伴慢性骨髓炎5例，足后跟足底软组织缺损伴跟骨表层组织缺损3例，跟骨骨髓炎伴窦道2例，皮瓣面积30 cm×10 cm～6 cm× 4.5cm，切取的腓肠肌瓣面积4 cm×3 cm～9 cm×6 cm，肌肉厚度1～3 cm，皮瓣面积比肌瓣的面积要大。

B Of the six basic media MS, MS1/2 (half-strength of MS salts and vitamins), WPM, DKW, B5 and SH, MS1/2 was the most proper one to induce somatic embryos. Somatic embryos generally regenerated directly from excised zygotic cotyledons. PGRs combination affected somatic embryogenesis significantly. Medium with NAA 1mg/L, TDZ 0.05mg/L, IBA 2—10mg/L combined with BA 10mg/L, or IBA 10mg/L integrated with BA 0-2mg/L gave the highest induction rate. Excised zygotic hypocotyls had the strongest potential to produce callus. Callus induction was also affected significantly by media and PGRs. The proper callus induction condition was MS1/2 medium containing NAA 1mg/L, IBA 10mg/L, BA 2-5mg/L and TDZ 0.05mg/L. Harvest period affect somatic embryogenesis significantly. Zygotic embryo explants collected from the end of July to the middle of August had strong potential to generate somatic embryos, when endosperm finished solidification, different parts of the embryos were completely formed, the size of embryos occupied about 2/3 of the embryo sac. Provided with optimized conditions, direct somatic embryogenesis rate can attain to 33. 68%, and callus induction rate of hypocotyls was up to 90.7%. Cytological observation on megasporogenesis and zygotic embryogenesis of Manchurian ash showed that the ovary was twicarpellum, twilocular with two ovules each loculus. The ovule was tenuinucellar and anatropous, with one megasporcocyte. The development of embryo sac is of the Polygoum type.

体细胞胚胎发生研究的结果表明：(1)成熟过程中的合子胚是诱导水曲柳体细胞胚胎发生的最佳外植体材料；(2)在所试验到的MS、MS1/2（将MS的所有成分均减半）、WPM、DKW、B〓、SH等六种基本培养基中，MS1/2是最适合诱导水曲柳体细胞胚胎发生的基本培养基；(3)水曲柳的体细胞胚胎发生以直接发生为主，体细胞胚主要来自于从合子胚分离的完整子叶；(4)培养基中的激素组合对水曲柳的体细胞胚胎发生有显著影响，诱导直接体细胞胚发生较好的激素组合有NAA 1mg/L+IBA 2，5，10mg/L+BA 10mg/L+TDZ 0.05mg/L和NAA 1mg/L+IBA 10mg/L+BA 0，2mg/L+TDZ 0.05mg/L；(5)合子胚分离的下胚轴具有最强的愈伤组织诱导潜力，少数愈伤组织可以分化出体细胞胚；(6)愈伤组织的诱导也受培养基和激素配比的显著影响，最适宜诱导的培养条件为MS1/2+NAA 1mg/L+IBA 10mg/L+BA 2，5mg/L+TDZ0.05mg/L；(7)采种时间对体细胞胚胎发生有显著影响。7月末到8月中旬的合子胚具有较强的体细胞胚发生潜力，此时种子尚未成熟，胚乳已呈固态，种胚的各个部分已分化完全，种胚体积占胚腔的大约2/3；(8)在各自综合的最适条件下，完整子叶的体细胞胚诱导率可达33.68%，下胚轴的愈伤组织诱导率可达90.7%。

The photosynthetic parameters of Sinocalycanthus chinensis in both overstory and understory, including the diurnal changes of net photosynthetic rate, intercellular CO2 concentration, dark respiration rate and stomatal resistance, were measured using a LCA4 Portable Photosynthesis System. The photosynthetic parameters of the accompanying plants such as Boehmeria platanifolia, Rhus chinensis and Weigela japonica var.

用LCA4型便携式全自动光合测定仪，在自然条件下，于7月下旬的晴朗天气测定了群落冠层和林下两种不同光环境下夏蜡梅的净光合速率、胞间CO2浓度、呼吸速率、气孔阻力的日进程，并与其伴生植物悬铃叶苎麻、盐肤木、水马桑Weigela japonica var。

Results As the results, there was 6 patients with the ILVT cycle length of (286±38)ms. The indicaed site of EA by noncontact mapping was at the middle septum in 4 patients, and at the inferior septum in 2 patients. Mean time of EA was (48.6±32.8)ms before onset of the surface QRS. The length of conduction pathway was (2.6±0.9)cm. The ablation catheter mapping showed perfect match in at least 11 of 12 leads at the EX (≥11/12), but not at the EA (≤10/12) with pace mapping during sinus rhythm. Purkinje potentials were mapped at EA and CP in all cases, but only one case at EX, and diastolic potentials were mapped at EA in 2 cases during ILVT. All cases were successfully ablated by area ablation at EA or/and line ablation at CP during sinus rhythm. None suffered a recurrence during (12±6) months follow-up.

6例ILVT周长为(286±38)ms，非接触标测显示4例激动起源位于中间隔，2例位于下间隔，EA较体表QRS波提前约(48.6±32.8)ms，传导径路长约(2.6±0.9)ms.6例病人在窦性心律下消融导管起搏标测12导联QRS形态与ILVT相匹配(≥11/12)处位于EX，而非EA(≤10/12)见正文。6例病人在室性心动过速期间消融导管于EA和CP处标测到PP，2例于EA标测到DP，1例于EX标测到PP.6例病人在窦性心律下于ILVT起源部位行片状或／和传导径路作线性消融均获成功，随访(12±6)月，未见复发。

Mean time of EA was (48.6±32.8)ms before onset of the surface QRS. The length of conduction pathway was (2.6±0.9)cm. The ablation catheter mapping showed perfect match in at least 11 of 12 leads at the EX (≥11/12), but not at the EA (≤10/12) with pace mapping during sinus rhythm. Purkinje potentials were mapped at EA and CP in all cases, but only one case at EX, and diastolic potentials were mapped at EA in 2 cases during ILVT. All cases were successfully ablated by area ablation at EA or/and line ablation at CP during sinus rhythm. None suffered a recurrence during (12±6) months follow-up.

6例ILVT周长为（286±38）ms，非接触标测显示4例激动起源位于中间隔，2例位于下间隔，EA较体表QRS波提前约（48.6±32.8）ms，传导径路长约（2.6±0.9）ms.6例病人在窦性心律下消融导管起搏标测12导联QRS形态与ILVT相匹配（≥11/12）处位于EX，而非EA（≤10/12）见正文。6例病人在室性心动过速期间消融导管于EA和CP处标测到PP， 2例于EA标测到DP， 1例于EX标测到PP.6例病人在窦性心律下于ILVT起源部位行片状或/和传导径路作线性消融均获成功，随访（12±6）月，未见复发。

All case of illness all are traumatic send radius far end 3 months after fracture issues dislocation of feet oar joint to treat come 1 year patient, all have wrist ministry ache, wrist ministry is faint, antebrachium whirligig suffers bounds symptom, via X line photograph examination diagnose is dislocation of joint of oar issueing rule. Below anaesthesia of sluggish of block of nerve of clump of arm of 1.2 operations method, the upper arm having side uses hemostatic tape.

所有病例均为外伤致桡骨远端骨折并下尺桡关节脱位治疗后3个月至1年患者，均有腕部疼痛，腕部无力，前臂旋转运动受限的症状，经X线照片检查确诊为下尺桡关节脱位。1.2手术方法臂丛神经阻滞麻醉下，患侧上臂应用止血带。

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At the end of the first month, they mate, but there is still one only 1 pair.

在一月底，最初的一对兔子交配，但是还只有1对兔子；在二月底，雌兔产下一对兔子，共有2对兔子；在三月底，最老的雌兔产下第二对兔子，共有3对兔子；在四月底，最老的雌兔产下第三对兔子，两个月前生的雌兔产下一对兔子，共有5对兔子；……如此这般计算下去，兔子对数分别是：1， 1， 2， 3， 5， 8， 13， 21， 34， 55，89， 144，。。。

At the end of the first month, they mate, but there is still one only 1 pair.

&在一月底，最初的一对兔子交配，但是还只有1对兔子；在二月底，雌兔产下一对兔子，共有2对兔子；在三月底，最老的雌兔产下第二对兔子，共有3对兔子；在四月底，最老的雌兔产下第三对兔子，两个月前生的雌兔产下一对兔子，共有5对兔子；……&

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。