究竟平衡作用发生在铬铁矿和硅酸盐下沉之前,还是在其后?Did equilibration take place before or after setting of chromite and silicates?如果脱模剂发粘, 则减少硅酸盐.If the mold spray is sticky, reduce the silicate.硅酸盐矿物的特点是耐熔和难以分离.Silicate minerals are characteri...
It is advisable to check the instrument by frequent calibration.最好通过经常的校准来检查仪器.These data can be plotted to form a calibration curve.这些数据可以绘制成一校准曲线.The instrument is very delicate for general calibration purposes.这种仪器作为一...