tervalent

tervalent

1. tervalent chromium

三价铬

2. middle-deep in terval

中深层

3. 4.The isolines of a ir grav ity anom aly d ifferences betw een W DM 94 and OSU 91 m odel(un it:m gal,in terval of isolines:5m gal).

图4 W DM 94和OSU 91模型空间重力异常差异等值线图(单位:m gal,等值线间距:5m gal) F ig.

4. 3.If vaccinal measles vaccine can prevent hives, take a poliomyelitis tervalent mixture vaccine can prevent a poliomyelitis to wait.

如接种麻疹疫苗能预防麻疹，服脊髓灰质炎三价混合疫苗能预防小儿麻痹症等。

5. If C1 is too small, it discharges during the D1and D2 nonconducting in terval, and more output ripples result.

它在D1和D2不导通期间C1放电很大，会增大输电压的纹波。