bulk phase concentration的用法和樣例：
例句
- The vapor phase concentration of durene could be adjusted by the self-made adjustor.
自制的高熔點物料氣相濃度調控儀能很好地調控氣相中均四甲苯的濃度，具有推廣應用價值。 - Loopy curved pipe was better than single curved pipe to profiles of particle concentration in phase separation.
多圈螺旋管能夠達到比單圈螺旋管更好的有利于分離的顆粒相濃度分布。
