您要查找的是不是:
- tree ring width chronology 年轮宽度年表
- Tree ring width chronologies of Zhen'an and Foping, Qinling Mountains region 秦岭镇安和佛坪地区树轮宽度年表的建立
- The absolute moisture content of green wood,bark percentage and growth ring width are 96.9%,12.99% and 22.82 mm respectively. 树皮率为12.;99%25; 生长轮宽度平均为22
- From pith outward, ring width becomes narrower gradually, and no significant relationship between ring width and cambium age is found. 年轮宽度由髓心向外逐渐变窄,但年轮宽度与树木年龄回归显著性不高,相关系数均小于0.;5。
- Ring width and sapwood width of diseased poplar decreased significantly than that of healthy poplar, but sapwood portion was same. 受害材的边材宽度和年轮宽度均小于健康材,边材率无显著差异。
- tree-ring width chronology of spruce 云杉树轮宽度
- Tree-ring width chronology of ancient Chinese pine in Shenyang City 沈阳市区古油松年轮宽度年表的建立
- According to elastic modulus of bending strength, ratio of knot and diameter, grain slope, yearly ring width and the wood defects of crackle, rot, discor, determinating indexes of board grade of small diameter larch. 根据抗弯弹性模量、节径比、纹理斜度、年轮宽度和裂纹、腐朽、变色等木材缺陷,确定小径落叶松层板等级。
- If any other requirements for piston rod head, U type ring width of cylinder lid, and diameter of pin are needed when placing an order, it is recommended to use our existing forged pieces. 订货的场合,如果对活塞杆头、油缸盖的U形环的宽度、销子的直径等尺寸方面另有要求时,建议采用能够利用的本公司现有的模锻件。
- The reasonable methods were developed for establishing tree-ring width chronologies of Larix gmelinii (larch) plantations in Northeast China. 摘要以东北地区人工林长白落叶松为研究对象,论述了合理建立其生长轮宽度年表的方法。
- Detection and Control of Inner Ring Width 内圈滚道宽度的检测及控制
- Relating to or in accordance with chronology. 年代学的与年代有关或依据年代的
- She had the sapphire set in a gold ring. 她把那枚蓝宝石镶在金戒指上了。
- The diamond ring dazzled with brilliancy. 这只钻石戒指闪耀夺目。
- The garden is six meters in width. 花园的宽度为六米。
- Is the material single width or double width? 这幅料子是单幅的还是双幅的?
- She wears a diamond ring on her left hand. 她左手上戴着一枚钻石戒指。
- Our family reunions are always three ring circus. 我家合家团聚的场面总是热闹非凡。
- The width of the room is 20 feet. 这房间宽二十英尺。
