在安大略省制模行业认证是可用的，但是自愿的。
Patternmaking trade certification is available, but voluntary, in Ontario.
水平滑动芯模与折叠芯模相比，具有省材料、减少拆芯模的劳动强度、芯模可反复利用而无需整修的优点。
Compared level slip core mould with folding core mould, it has the advantages of saving material, reducing dismantle core Labour intensity and using core mould recycle but not rebuilding.
本文调查了1984年黑龙江省鸡东县学模村华枝睾吸虫病的流行情况。
An epidemiological survey on Clonorchiasis was performed in Xuemo village, Jidong County, Heilongjiang province, 1984.
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