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The laboratory dose-response study showed that DMDS the LC50 of Meloidogyne spp., Fusarium spp., Digitaria sanguinalisScop, Abutilon theophrasti Medicus were 5.3535, 3.7517, 10.1147 and 17.1740 mg/kg, respectively.

室内生物测定结果显示DMDS对土壤中的线虫和镰刀菌的LC50值分别为5.3535、3.751 7 mg/kg；对马唐和苘麻的LC50值分别为10.114 7、17.174 0 mg/kg。

Transition probabilities, oscillator strengths, and lifetimes of configurations, multiplets, and individual lines for many-electron atoms and ions are studied employing the WBEPM theory. Transition probabilities and oscillator strengths for alkali metal atoms, alkaline-earth elements Be, Mg, Be , and Mg , carbon atoms and its ions , nitrogen atom and its ions , oxygen atoms and its ions , fluorine atom, Ne , and IB elements are calculated. Lifetimes of C, N, and O atoms are evaluated as well.

运用WBEPM理论对多电子原子和离子的组态、谱项和能级间的跃迁几率、振子强度以及辐射寿命进行系统地研究，计算了碱金属原子、碱土金属的Be、Mg原子及其一价离子、C原子及其离子、N原子及其离子、O原子及其离子、F原子、Ne离子和重金属IB族原子的跃迁几率和振子强度以及C、N、O原子的辐射寿命。

Androgynus was a kind of hyperaccumulator in Cd, with critical value of 50 mg/kg, above which would cause poison in S. androgynus, and even dead when it was up to 800mg/kg; transfer coefficient would decrease with the increase in treated concentrations, which show that plant would protest Cd against transferring to above-grounds and causing poison.

以上结果说明五指山野菜是Cd超积累植物，且50 mg/kg时是五指山野菜正常生长的临界值，高于此浓度，将对其产生毒害，当浓度为800 mg/kg时，植株出现死亡；随处理浓度的增加，转移系数逐渐变小，说明植物在高Cd胁迫下阻止Cd向地上部分转移而产生更严重的毒害。

Result Explants sterilized in 0.1% mercuric chloride for 8 min had the best effect. The optimum medium for callus was MS+6-BA 1.0-1.5 mg/L+NSA 0.5-1.0 mg/L.

结果］用浓度0.1%升汞溶液灭菌8 min，外植体污染率为54.55%，死亡率为3.64%；最佳诱导培养基为MS+6-BA 1.0-1.5 mg/L+NAA 0.5~1.0 mg/L。

The detection limits of Pb ,Cr and As were 0.002、0.0008 and 0.004 mg/L. The LOQ was 0.066、0.026 and 0.13 mg/kg.

铅、铬和砷的检出限分别为0.002，0.0008，0.004 mg/L；定量限分别为0.066，0.026，0.13 mg/kg。

Patients were randomly assigned by a computer-generated randomisation scheme to receive oral dimebon, 20 mg three times a day (60 mg/day [n=89]), or matched placebo (n=94). Other antidementia drugs were not allowed.

根据计算机生成的随机方案，随机分配患者接受口服dimebon 20 mg，3次/d（60 mg/d，n＝89）或匹配的安慰剂（n＝94），不允许服用其他抗痴呆药物。

MS medium supplemented with 0.005 mg/L TDZ and 0.005 mg/L IAA is the optimal condition for the leaf regenerations of these two Siberian elms.

两种白榆叶片再生的最适培养基均为MS+TDZ0.005 mg/L+IAA0.005 mg/L。

Dimenhydrinate is an inexpensive antiemetic with few side effectsavailable as an oral, long-acting formulationcontaining 25 mg of immediate and 50 mg of sustained releasedrug.

晕海宁是一个便宜的止吐药，副作用极少，现有含25 mg 即刻释放药物及50 mg 缓释药物的口服长效制剂（ Gravol L/A ）。

The results of Xianfeng coal tested in 200 kg/d PDU of IGOR process in Germany showed IGOR process marched Xianfeng brown coal well with 53%of oil yield, 2 mg/kg and 17 mg/kg of N and S contents.

云南先锋褐煤在IGOR工艺200 kg/d的PDU装置上的试验结果表明，先锋褐煤是适宜IGOR煤液化的煤种，得到的油收率为53%，油品中氮和硫的含量分别为2 mg/kg和17 mg/kg。

The effect of small amount of Mn and Zr on the microstructure and mechanical properties of Mg-13%Gd and Mg-9%Gd-4%Y alloys was studied.

摘 要：研究了微量Mn、 Zr对Mg-13％Gd和Mg-9％Gd-4%Y合金铸态和挤压后的微观组织及力学性能的影响。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。