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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。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。