Through investigation on relationship beween larch pure crop needle cast condition and forest soil in county Yitong of province Jilin, getting conclusion: pure crop needle cast condition growing on white betonies is more serious than growing on deeply brown soil.

通過對吉林省伊通縣落葉松人工純林落葉病病情與林地土壤關系調(diào)查發(fā)現(xiàn)：生長在白漿土類土壤上的落葉松純林病情明顯重于生長在暗棕壤土類土壤上的落葉松純林。

Gray cast iron, needle valve For the nominal pressure pN ≤ 1.0MPa, temperature of -10 ~ 200 ℃ water, steam, air, gas and oil, and other media of gray cast iron valve.

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Gray cast iron needle valve For the nominal pressure pN ≤ 1.0MPa, a temperature of -10 ~ 200 ℃ of water, steam, air, gas and oil and other media, gray cast-iron valves.

灰鑄鐵制針型閥門用于公稱壓力pN≤1.0MPa野花社区www视频在线看，溫度為–10~200℃的水、蒸氣欧美另类暴力丝袜、空氣黄网站色视频免费播放、煤氣及油類等介質(zhì)的灰鑄鐵制閥門肏逼视频毛片。

And the sale of ceramic pieces, the needle, cast iron test platform, mold platform-foot, rectangular device, Qu Zheng, industry-standard, machine Sizing Block, angle-foot, the mother-foot, and other products.

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needle cast：落針病

皰銹病 blister rust | 落針病 needle cast | 猝倒病 damping-off

needle cast：落葉病,落針病

needle cam ==> 針凸輪 | needle cast ==> 落葉病,落針病 | needle chamber ==> 針場電離室

needle cast：落葉病

云杉葉銹病 Needle rust of spruce | 落葉病 Needle-cast | 針葉樹 Needle-leaved tree